{"title":"Repair by COLOURLOCK","description":"\u003ch2 id=\"speakable-headline\"\u003eFill cracks instead of reupholstering with Repair by COLOURLOCK\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat is Repair by COLOURLOCK? The repair line from the leather specialist behind the Lederzentrum: glue for tears and backing repairs, sandable fillers for holes and missing spots, re-fatting oil and softener for brittle leather. Each step sets up the next, so colour and sealant hold at the end.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eRepair by COLOURLOCK\u003c\/strong\u003e is the repair line from the leather specialist that has supplied upholsterers and refinishers as the Lederzentrum since 1995 and has belonged to Koch-Chemie since late 2023. The products aren't one-off fixes but stations in a fixed sequence: degrease, glue, fill, sand, dye, seal. Re-fatting oil and softener make brittle leather flexible again first, fillers close cracks and missing spots, and glue carries the area from behind.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe repair stays as flexible as the leather.\u003c\/strong\u003e The fillers are based on polyurethane dispersions: polymer chains float in water, and as it dries they move together and lock into the open collagen fibres of the leather. You notice it when the filled spot flexes as you get in, instead of tearing open again at the first edge.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEvery layer dries on its own.\u003c\/strong\u003e Because the water content evaporates, every fill shrinks as it dries. A thick blob pressed in only skins over on top, stays soft inside, sinks and cracks. That's why the system works in wafer-thin layers with drying in between — more passes, but a repair that stays flat.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrep and colour come from the same line.\u003c\/strong\u003e Degreaser, primer, filler, colour and top coat are matched to each other — absorbency, drying time and degree of cross-linking fit together. For you that means you're not hunting for combinations that get along, you just follow a sequence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e Cleaning isn't degreasing, and that's exactly where most DIY repairs fall down. A surfactant cleaner gets dirt out of the grain, but it doesn't shift skin oil or the silicones from cheap dashboard sprays. Both stay behind as a wafer-thin, water-repellent film — and water-based fillers and colours bead up on it instead of bonding. We regularly get questions about steering wheels whose fresh tint rubs off again after two or three weeks; almost every time the degreasing step was too short. The test takes seconds: after degreasing, the surface has to look dull and feel ever so slightly tacky under your finger. If it's still shiny, go in a second time with COLOURLOCK \"Degreaser\" and work it on the steering wheel rim and the entry bolster five minutes too long rather than one minute too short.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eAt COLOURLOCK, repair is the origin and care the spin-off\u003c\/h3\u003e\n\u003cp\u003eCOLOURLOCK isn't a care brand that does a bit of repair on the side. The line came about the other way round: from 1995 the Lederzentrum supplied upholsterers and refinishers whose daily work is cracked side bolsters, worn-through steering wheel rims and hardened classic-car seats. The care products came later — as prevention against exactly the damage that had been landing on the bench.\u003c\/p\u003e\n\n\u003cp\u003eThat still shapes the formulas today. A repair product isn't judged on how good it looks on day one, but on whether it still holds after a thousand times getting in and out. So every product in this line faces the same question first: does it stay elastic, and does it bond permanently to a material that stretches and contracts with every movement?\u003c\/p\u003e\n\n\u003cp\u003eSince October 2023 the leather specialist has belonged to Koch-Chemie, and development and production came together in Unna over the course of 2024. You mostly see it in the packaging, now in familiar Koch-Chemie design; that's why the products are listed in the shop under the vendor Koch-Chemie × COLOURLOCK. The system logic behind it hasn't changed.\u003c\/p\u003e\n\n\u003cp\u003eFor you as a user, that's the real difference from an off-the-shelf repair kit. You're not buying an all-purpose paste that's supposed to do everything at once, but individual steps that pros work through in exactly this order. More effort reading, less effort fixing afterwards.\u003c\/p\u003e\n\n\u003ch3\u003ePrep, glue, fill. Three groups in a fixed order\u003c\/h3\u003e\n\u003cp\u003eThe repair line breaks down into three groups, and their order isn't a suggestion, it's physics. It starts with \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-reparatur-vorbehandlung\"\u003ePre-treatment \u0026amp; touch-up by COLOURLOCK\u003c\/a\u003e: COLOURLOCK \"Licker Oil\" re-fats dried-out fibres so they don't tear further while you work, and COLOURLOCK \"Scratch Away\" takes out light scratches and pale scuffs purely mechanically, as long as the colour coat is still intact.\u003c\/p\u003e\n\n\u003cp\u003eFor hard, brittle old leather, the \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-reparatur-weichmacher\"\u003eLeather softener by COLOURLOCK\u003c\/a\u003e COLOURLOCK \"Old Leather Softener\" goes deeper than the re-fatting oil. It works slowly: on badly dried-out classic-car seats it soaks in over hours, and it often takes several passes about 24 hours apart before the leather bends again without cracking. Only then can it take a repair at all.\u003c\/p\u003e\n\n\u003cp\u003eGaping tears come next. The products under \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-reparatur-lederkleber\"\u003eLeather glue \u0026amp; seam repair by COLOURLOCK\u003c\/a\u003e are water-based polymer dispersions: they dry clear, stay permanently flexible and don't smell. COLOURLOCK \"Leather Glue\" (Solvent Free) is the glue for surfaces and backing repairs, COLOURLOCK \"Rep Glue\" the thinner one for pinpoint fixes and small patches.\u003c\/p\u003e\n\n\u003cp\u003eOnly once the area can carry load again do the \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-reparatur-fuellstoffe\"\u003eFillers \u0026amp; filler paste by COLOURLOCK\u003c\/a\u003e come into play. They close whatever is still left as a dip after gluing and give you the flat, sandable surface that colour later covers evenly.\u003c\/p\u003e\n\n\u003cp\u003eTwo products belong here functionally but sit in neighbouring categories in the shop. COLOURLOCK \"Degreaser\" from \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-reinigung-entfetter\"\u003eDegreaser by COLOURLOCK\u003c\/a\u003e is step zero before everything else. And you'll find COLOURLOCK \"Binder\" (Neutral) under \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-faerben-lederfarben\"\u003eLeather dyes by COLOURLOCK\u003c\/a\u003e, because it's pigment-free and forms the bridge to building up colour.\u003c\/p\u003e\n\n\u003ch3\u003eFiller doesn't replace a backing repair\u003c\/h3\u003e\n\u003cp\u003eThe most common mistake with tears is filling them from the top. A tear on the seat base or entry bolster is under tension — glued edge to edge or just filled, it rips open again in the same spot next time you get in. Tears like that need support from behind: slide a cut-to-size backing fabric through the tear under the leather, smooth it flat, then apply the glue very thinly with a fine brush between fabric and the back of the leather.\u003c\/p\u003e\n\n\u003cp\u003eVery thin means exactly that. We keep seeing repairs where the glue went on generously and then migrated through the pores to the surface — especially on thin nappa and clothing leather. There it cures into a dark spot that can't be removed. Less glue and a second pass are always the faster route here.\u003c\/p\u003e\n\n\u003cp\u003eWith fillers, the base colour of the leather decides. COLOURLOCK \"Filler\" (Black) stops pale repair spots glowing out of dark leather; COLOURLOCK \"Filler\" (White) does the same the other way round and keeps a dark base from showing through. Both air-dry, can be finely sanded once cured and stay elastic enough to move with the seat. Both need colouring afterwards, because filling power and colour are two separate jobs.\u003c\/p\u003e\n\n\u003cp\u003eFor anything beyond a dip there's \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-reparatur-spachtelmasse\"\u003eFiller paste by COLOURLOCK\u003c\/a\u003e: COLOURLOCK \"Leather \u0026amp; Plastic Paste\" cures under hot air, barely shrinks and holds its shape. It rebuilds edges, holes and missing material, even on plastic parts like door cards and the centre console. As a fine filler for a hairline crack it's overkill.\u003c\/p\u003e\n\n\u003cp\u003eAnd then there's the case where nothing needs filling at all: COLOURLOCK \"Binder\" (Neutral) contains no coarse filler particles; instead it soaks into leather that's gone brittle over a large area and firms up the loose pigment layer before colour goes on top. Binder soaks, filler fills, paste builds up. Mix those three up and you'll be doing the job twice.\u003c\/p\u003e\n\n\u003ch3\u003eThin layers last longer than one thick one\u003c\/h3\u003e\n\u003cp\u003eThe routine is always the same, and it doesn't forgive shortcuts. Clean, degrease, key the surface with a fine sanding pad, prime, glue or fill, sand between coats, match the texture, dye, seal. Keying looks like a side issue but does three things at once: it trims fibres standing up along the tear edges, opens the pores and increases the area primer and filler can grip onto.\u003c\/p\u003e\n\n\u003cp\u003eWhen filling, shrinkage decides the result. Apply so little that the layer can genuinely dry through, and rather add one more pass. Between layers, warm air on a moderate setting helps, then let it cool briefly. What we see day-to-day: the first time, plan on a whole afternoon for one side bolster rather than an hour — not because of the work, but because of the waiting.\u003c\/p\u003e\n\n\u003cp\u003eOnce dry, a filled spot looks smooth, and that's exactly the problem: it reflects differently from the grain around it and looks like a plastic patch. So the dried filler gets softened, smoothed and re-textured before any colour goes on. Skip that step and you'll see the repair every time the light hits it at an angle.\u003c\/p\u003e\n\n\u003cp\u003eThe last common mistake is the easiest one: dabbing colour straight onto a crack you can feel. Leather colour has no filling power. It lays a thin film over the edge, even accentuates it, and is the first thing to flake off at the break. If you can feel it with your fingernail, it needs filling — if you can only see it, it needs colour. What comes next is under \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-faerben\"\u003eDyeing \u0026amp; finishing by COLOURLOCK\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eNot every leather defect belongs in your hands\u003c\/h3\u003e\n\u003cp\u003eTwo zones are off-limits for DIY repair, and one of them is about more than looks. The outer bolsters of many car seats hide the tear seams for the side airbags. If they get glued, stitched or blocked with filler, deployment can change in a crash. Work on those seams belongs only with certified specialists — no matter how well you handle the rest.\u003c\/p\u003e\n\n\u003cp\u003eThe second no-go zone is perforated leather in climate-controlled seats. Liquid and filler paste run into the hole matrix, make the unprotected edges inside the holes swell and soak into the foam beneath. We deliberately tried it on a test area of a perforated seat cushion: the holes clogged, and in the end the blocked pores stood out more than the scratch we'd started with. Open-pored aniline leather is the third case — it soaks up colour and grease like a sponge and needs airbrush technique instead of a brush.\u003c\/p\u003e\n\n\u003cp\u003eThere's a structural limit too. If the entry bolster hasn't just torn in the leather but the backing fabric has gone and the foam underneath is broken, no filler paste will take the point load of sliding over it. That section is a job for an upholsterer. An honest expectation belongs here as well: heavily filled spots will always feel a bit more even and rubbery than natural leather, and re-dyed zones on a car driven every day will want a refresh after about one to two years.\u003c\/p\u003e\n\n\u003cp\u003eWhere the colour coat still holds and only the surface has suffered, the effort is much smaller. For pale rub marks on the steering wheel rim and light scratches under \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-reparatur-kratzer\"\u003eLeather scratch remover by COLOURLOCK\u003c\/a\u003e, COLOURLOCK \"Scratch Away\" on its own is often enough, with no filler or colour at all. And if it's your first repair, a matched package from \u003ca href=\"\/en\/collections\/koch-chemie-colourlock-sets-reparatursets\"\u003eRepair kits by COLOURLOCK\u003c\/a\u003e makes for a calmer ride than components picked out one by one.\u003c\/p\u003e\n\n\u003ch3\u003eYour damage decides where you start\u003c\/h3\u003e\n\u003cp\u003eRun your fingernail over the spot. If you feel nothing and only see a paler, matte rub mark, the colour coat is intact and COLOURLOCK \"Scratch Away\" is all it takes. If you feel an edge but the leather is still closed, the work starts with degreasing and ends with filler. If the tear gapes open, glue with a backing repair comes first.\u003c\/p\u003e\n\n\u003cp\u003eIf the leather cracks when you bend it or feels like parchment, flip the order and start further back: re-fat first with COLOURLOCK \"Licker Oil\", and with very old leather work it soft over several days with COLOURLOCK \"Old Leather Softener\". Brittle leather you fill straight away simply tears again right next to the repair. We get that follow-up question more often than any other about the repair line.\u003c\/p\u003e\n\n\u003cp\u003eIf material is missing — broken-out edges, holes, exposed foam — the route goes via COLOURLOCK \"Leather \u0026amp; Plastic Paste\" rather than a filler. And if the surface is brittle over a large area without one dominant crack, stabilise it first with COLOURLOCK \"Binder\" (Neutral). You'll find all the brand's other products one level up: \u003ca href=\"\/en\/collections\/koch-chemie-colourlock\"\u003eCOLOURLOCK × Koch-Chemie\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe step almost everyone does the wrong way round comes right at the end. After dyeing there's a fresh, still-soft pigment layer on the leather, and instinct says: condition first, then seal. The reverse is right. Sealant first as rub protection, let it cure for at least 24 hours, then condition. Reach for the conditioning milk first and you're working fat under an unprotected colour coat. In a few weeks, what took a whole afternoon has rubbed off again.\u003c\/p\u003e\n","products":[{"product_id":"koch-chemie-colourlock-binder-neutral-neutrale-fuellfarbe","title":"COLOURLOCK \"Binder\" (Neutral) — neutral filler for brittle, cracked leather","description":"\u003ch2\u003eCOLOURLOCK Binder (Neutral) — neutral filler for structural leather repairs\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Binder Neutral do? — The neutral binder stabilises damaged leather surfaces, fills fine cracks and worn spots, strengthens the structure and forms the load-bearing base before colour-specific products like Leather Fresh or Fluid Leather go on.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Binder (Neutral)\u003c\/strong\u003e is the professional base coat for structural leather repairs. The binder firms up the top pigment layer, fills micro-cracks, masks light fibre damage and preps the leather so coloured products grip better afterwards and cover evenly. As the neutral version it carries no pigment and works purely for stabilisation, not colour correction. Ideal for cars, furniture, fashion and all pigmented smooth leather showing wear, scratches or early cracking.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilises weakened leather surfaces\u003c\/strong\u003e – Firms up the pigment layer and stops small cracks from opening up further.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvens out micro-structures\u003c\/strong\u003e – Fills fine worn spots and gives you a smoother surface as a repair base.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeutral base for colour\u003c\/strong\u003e – No pigment, no tint – pure structural reinforcement before Leather Fresh or Fluid Leather.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eBinder technology \u0026amp; how it works in worn leather\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBinder Neutral\u003c\/strong\u003e uses flexible, high-grip binders that work into the damaged areas of the top coat and build a new, elastic structure right there. As leather turns microscopically brittle over time through friction and UV, the binder acts like a repairing „primer-filler“: it links loose pigment particles, closes small breaks and stops further fraying. Koch-Chemie says the layer stays elastic so the leather keeps its natural give. The neutral binder changes neither colour nor sheen — it just delivers the structural stability that makes the next colour coats grip far better.\u003c\/p\u003e\n\u003ch3\u003ePrep, application \u0026amp; the right repair sequence\u003c\/h3\u003e\n\u003cp\u003eBefore you use the \u003cstrong\u003eBinder\u003c\/strong\u003e, the leather should be cleaned and degreased thoroughly so the filler can work in evenly. You lay the binder down thin with a sponge, dauber or brush and build it up in several fine coats until the surface feels structurally sound again. Let it flash off briefly between coats so you don’t get uneven patches. On slightly deeper damage you can lightly sand in between to smooth things out. After the binder phase comes the colour build-up: Leather Fresh for light colour touch-ups or Fluid Leather for heavier repairs. Only on a stabilised surface will these products cover evenly and hold for the long run.\u003c\/p\u003e\n\u003ch3\u003eResults, typical uses \u0026amp; how it differs from coloured products\u003c\/h3\u003e\n\u003cp\u003eAfter application the area feels smoother, sturdier and far better prepped for a colour refresh. \u003cstrong\u003eBinder Neutral\u003c\/strong\u003e earns its place wherever there’s structural damage: seat bolsters, steering wheels, furniture edges, the high-wear zones of bags and jackets. It doesn’t replace a full colour repair — the coloured versions of the Binder range or Leather Fresh are ideal for that. Neutral is deliberately the „invisible“ base that dials in structure, firmness and grip. In the car interior especially it lays the groundwork so later repairs don’t flake or look blotchy.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Binder (Neutral)\u003c\/h2\u003e\n\u003ch4\u003eDoes the binder colour the leather?\u003c\/h4\u003e\n\u003cp\u003eNo. The neutral version carries no pigment at all and works only for structural stabilisation.\u003c\/p\u003e\n\u003ch4\u003eIs binder the same as leather paint?\u003c\/h4\u003e\n\u003cp\u003eNo. Binder is a filler and firming product. For colour touch-ups you use Leather Fresh or Fluid Leather.\u003c\/p\u003e\n\u003ch4\u003eHow many coats do you need?\u003c\/h4\u003e\n\u003cp\u003eOne to several thin coats depending on the damage. The key: always work sparingly and let it dry well.\u003c\/p\u003e\n\u003ch4\u003eCan I use binder without primer?\u003c\/h4\u003e\n\u003cp\u003eWith good grip conditions, yes. On tricky or silicone-heavy surfaces, Leather Primer beforehand is the way to go.\u003c\/p\u003e\n\u003ch4\u003eDoes binder make the repair last longer?\u003c\/h4\u003e\n\u003cp\u003eYes. Stabilised areas hold colour better and are less prone to cracking open again.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 02.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"Neutral \/ 1000 ml \/ 1 liter","offer_id":56320202899791,"sku":"D1-KCX-481-1L-01","price":49.99,"currency_code":"EUR","in_stock":true},{"title":"Neutral \/ 250ml","offer_id":56320202932559,"sku":"D1-KCX-481-250ML-01","price":18.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/481-1L-01_1.png?v=1762116834"},{"product_id":"koch-chemie-colourlock-old-leather-softener-weichmacher-verhartetes-altes-leder","title":"COLOURLOCK \"Old Leather Softener\" softener for hardened old leather","description":"\u003ch2\u003eCOLOURLOCK Old Leather Softener — deep softener for hard, brittle old leather\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Old Leather Softener do? — The softener works deep into old, hardened leather, brings back flexibility, lowers the risk of cracking and gets the material properly ready for further care or repair steps.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Old Leather Softener\u003c\/strong\u003e is the pro answer when old, dry or brittle leather needs to go soft and supple again. On classic cars, vintage furniture, saddles or smooth leather that's been left alone for years, the material slowly loses its natural fibre elasticity. The softener feeds oils and suppling agents straight into the deeper leather layers, cuts the risk of cracking and builds a solid base for repairs, care and colour work. Old Leather Softener works slowly but for keeps — perfect for any leather that has gone stiff and could tear under tension.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrings back suppleness deep down\u003c\/strong\u003e – Works into hardened fibres and clearly improves how the leather moves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLowers the risk of cracks and tears\u003c\/strong\u003e – Ideal before colour refreshes or repairs, so brittle spots hold up better.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA must for classic-car, furniture \u0026amp; vintage leather\u003c\/strong\u003e – Perfect for smooth leather that's gone neglected or bone-dry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eSoftener technology \u0026amp; how it works in old leather\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOld Leather Softener\u003c\/strong\u003e blends high-action oils and conditioning agents that slowly draw into the collagen structures of the leather. As leather ages, the fibres lose their internal moisture and flexibility; they harden, which can lead to micro-cracks, stiffness and splits. The softener releases that dry rigidity step by step, making the fibres supple again and bringing back natural movement. According to the maker, it works deep without leaving the leather greasy or making the surface patchy. Since old leather is often badly weakened, the softener acts like a rebuild of the inner structure before you can even think about repairs.\u003c\/p\u003e\n\u003ch3\u003ePrep, application \u0026amp; the best soaking routine\u003c\/h3\u003e\n\u003cp\u003eBefore you start, the leather should be clean and bone-dry. You lay \u003cstrong\u003eOld Leather Softener\u003c\/strong\u003e on generously but under control, with a brush, cloth or sponge. The effect isn't instant — it creeps in: the leather pulls the product in over hours or days, depending on how dry it is. On really hard spots it helps to flex the leather a little so the softener can work in deeper. Repeat coats 24 hours apart may be needed until you've got the suppleness you want. Only once the leather feels noticeably softer and more flexible should colour build-up, repairs or care products follow, so they don't fail on a brittle surface.\u003c\/p\u003e\n\u003ch3\u003eResults, where it fits \u0026amp; how it differs from care products\u003c\/h3\u003e\n\u003cp\u003eAfter the soaking phase, old leather feels far more flexible, less brittle and shows a more stable fibre structure. That lowers the chance of new cracks forming when you sit on it, stroke it or work it. \u003cstrong\u003eOld Leather Softener\u003c\/strong\u003e suits classic-car leather seats, furniture, motorcycle saddles, antique leather goods and anywhere leather has dried out over decades. It doesn't replace care creams or colour preps: those come in only after the softening phase. The softener is purely for structural recovery — colour touch-ups should wait until the leather is elastic enough to carry them for good.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Old Leather Softener\u003c\/h2\u003e\n\u003ch4\u003eHow long does the softener take to work?\u003c\/h4\u003e\n\u003cp\u003eSeveral hours to days, depending on how dry it is. Old leather often needs more than one coat.\u003c\/p\u003e\n\u003ch4\u003eCan I use it on all types of leather?\u003c\/h4\u003e\n\u003cp\u003eOn all smooth leather, yes. Not suitable for nubuck or suede.\u003c\/p\u003e\n\u003ch4\u003eDoes the softener darken the leather?\u003c\/h4\u003e\n\u003cp\u003eSlightly possible, especially on very dry leather. The effect usually evens out again after care.\u003c\/p\u003e\n\u003ch4\u003eCan I dye straight after the softener?\u003c\/h4\u003e\n\u003cp\u003eOnly once the leather is flexible again and has no oil excess left. Only then will colour hold reliably.\u003c\/p\u003e\n\u003ch4\u003eHow do I know enough softener has soaked in?\u003c\/h4\u003e\n\u003cp\u003eThe leather bends again without cracking and feels clearly more supple.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 02.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1000 ml \/ 1 liter","offer_id":56541632233807,"sku":"D1-KCX-533-1L-01","price":41.99,"currency_code":"EUR","in_stock":true},{"title":"250ml","offer_id":56541632266575,"sku":"D1-KCX-533-250ML-01","price":17.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/533-1L-01_1.png?v=1764713850"},{"product_id":"koch-chemie-colourlock-leather-glue-solvent-free-losemittelfreier-kleber-lederreparaturarbeiten","title":"COLOURLOCK \"Leather Glue\" (Solvent Free) Solvent-Free Adhesive for Leather Repairs","description":"\u003ch2\u003eCOLOURLOCK Leather Glue (Solvent Free) — solvent-free adhesive for leather repairs\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Leather Glue Solvent Free do? — It bonds leather, faux leather and fabric for good: a flexible bond with no solvent smell, made for tears, lifting edges and edge repairs across car, furniture and fashion work.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Leather Glue (Solvent Free)\u003c\/strong\u003e is the safe, odour-free specialist adhesive that cures flexible on leather, faux leather and textile backings. It's spot-on for tears, open seams, lifting edges, flaked-off bits of leather or backing patches during repairs, and it won't stiffen or discolour the material. The bond stays elastic for good, so it's ideal for any leather that flexes and takes load — seat bolsters, steering wheels, furniture edges, bags or shoe areas.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible leather adhesive with no solvents\u003c\/strong\u003e – No smell, and the leather never dries out or goes stiff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong, lasting bond\u003c\/strong\u003e – Spot-on for tears, lifting edges and backing patches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks just about anywhere\u003c\/strong\u003e – On leather, faux leather, fabric backings and plenty of interior surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eBonding technology \u0026amp; how it works\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLeather Glue Solvent Free\u003c\/strong\u003e is built on modern water-based polymer dispersions that set into a flexible, hard-wearing bond as they dry. Unlike solvent-based contact adhesives, the formula doesn't attack the leather, creates no stiff zones and stays elastic over the long haul. That matters for repairs in cars and furniture, where leather is forever moving and taking load. The glue layer stays thin, clear and stable — a solid base for repair materials like leather patches, binder, Fluid Leather or colour.\u003c\/p\u003e\n\u003ch3\u003ePrep, application \u0026amp; pro repair technique\u003c\/h3\u003e\n\u003cp\u003eClean the spot first and let it dry right through. You lay the \u003cstrong\u003esolvent-free adhesive\u003c\/strong\u003e down thin and precise, then either bond straight away or let it tack off for a moment, depending on the repair. For tears, back the area with a textile carrier before you level the surface with binder or Fluid Leather. Wipe off any excess straight away — the glue dries clear, but it's far easier to fix while it's still wet. Once it's fully cured you can colour-match the area and seal it off.\u003c\/p\u003e\n\u003ch3\u003eResults, where it works \u0026amp; how it differs from other adhesives\u003c\/h3\u003e\n\u003cp\u003eOnce cured you get a flexible, hard-wearing bond that holds even under movement. \u003cstrong\u003eLeather Glue Solvent Free\u003c\/strong\u003e is ideal for car leather seats, furniture, bags, shoe leather, interior trim and accessories. It isn't meant as a contact adhesive for large laminations — it's for precise repairs, backing patches or fixing small pieces of leather in place. Unlike solvent-based glues, it works odour-free, goes easy on the material and is safe on just about every type of leather.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Leather Glue (Solvent Free)\u003c\/h2\u003e\n\u003ch4\u003eHow strong is the bond?\u003c\/h4\u003e\n\u003cp\u003eVery strong, yet still flexible. Ideal for tears and edges that move.\u003c\/p\u003e\n\u003ch4\u003eCan I use the glue on every type of leather?\u003c\/h4\u003e\n\u003cp\u003eYes — on smooth leather, faux leather and textile backings. For suede, work very precisely.\u003c\/p\u003e\n\u003ch4\u003eHow long does it take to dry?\u003c\/h4\u003e\n\u003cp\u003eAbout 30–120 minutes depending on the coat thickness; full cure-through takes longer.\u003c\/p\u003e\n\u003ch4\u003eCan I use binder or colour afterwards?\u003c\/h4\u003e\n\u003cp\u003eYes, as soon as the glued area is fully dry.\u003c\/p\u003e\n\u003ch4\u003eIs the glue easy on your health?\u003c\/h4\u003e\n\u003cp\u003eYes — thanks to the solvent-free, low-odour formula.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 04.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"20 ml","offer_id":56562226954575,"sku":"D1-KCX-686-20ML-01","price":13.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/686-20ML-01_1.png?v=1778250900"},{"product_id":"koch-chemie-colourlock-scratch-away-spezialprodukt-kratzer-entferner-leder","title":"COLOURLOCK \"Scratch Away\" special product for removing light surface scratches in leather","description":"\u003ch2\u003eCOLOURLOCK Scratch Away — scratch remover for smooth leather\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Scratch Away do? — The special cleaner smooths and polishes light scratches, scuffs and pale rub marks on smooth leather without adding any colour, bringing back the natural surface.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Scratch Away\u003c\/strong\u003e is the hands-on fix for light scratches, surface scuffs and pale wear marks on pigmented smooth leather. Instead of laying down colour or filler, Scratch Away works through a finely tuned polishing and smoothing process: it gently levels the top leather layer, so light rub damage visibly fades away. Ideal for car leather, furniture, bags, shoes and every kind of smooth leather with the usual signs of wear.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves light scratches \u0026amp; scuffs\u003c\/strong\u003e – No re-colouring, an improvement you can see straight away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooths the surface\u003c\/strong\u003e – Knocks back pale rub marks with targeted micro-polishing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick \u0026amp; easy to use\u003c\/strong\u003e – Perfect for bolsters, steering wheels, furniture edges \u0026amp; accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eHow it works \u0026amp; the smoothing technology\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eScratch Away\u003c\/strong\u003e uses fine micro-abrasives and nourishing additives that level the very top leather coating just a touch, without touching the colour layer. That's how light scratches, pale shiny spots or rub marks from clothing, friction or daily use disappear. The effect isn't about colour — it's about controlled surface correction. The product shines where the colour layer is still intact but the leather looks tired.\u003c\/p\u003e\n\u003ch3\u003eHow to use it, application \u0026amp; best practices\u003c\/h3\u003e\n\u003cp\u003eBefore you start, the leather should be clean and fully dry. You put a little \u003cstrong\u003eScratch Away\u003c\/strong\u003e on a soft cloth and work it gently into the damaged spot with circular motions. The polishing effect kicks in right away and the surface gets visibly smoother and more even. If you need to, run over it again until the rub marks are gone or clearly reduced. To finish, it's worth caring for or sealing the leather with Leather Shield to lock in the result.\u003c\/p\u003e\n\u003ch3\u003eResults, where to use it \u0026amp; the limits of the product\u003c\/h3\u003e\n\u003cp\u003eAfter treatment the leather looks more even, smoother and fresher. \u003cstrong\u003eScratch Away\u003c\/strong\u003e is a great fit for car seats, furniture, bags, shoes and all pigmented smooth leather. It is not a filler and won't replace a colour repair on deep scratches or damage. The cleaner works best on surface rub marks, light scuffs and friction marks — but not on dyed-through cuts or material loss.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently asked questions about COLOURLOCK Scratch Away\u003c\/h2\u003e\n\u003ch4\u003eCan Scratch Away remove every scratch?\u003c\/h4\u003e\n\u003cp\u003eOnly light, surface scratches. For deep damage you'll need a filler or Leather Fresh.\u003c\/p\u003e\n\u003ch4\u003eDoes Scratch Away work on any leather?\u003c\/h4\u003e\n\u003cp\u003eOn pigmented smooth leather, yes. Not suitable for aniline, nubuck or suede.\u003c\/p\u003e\n\u003ch4\u003eDoes Scratch Away change the colour?\u003c\/h4\u003e\n\u003cp\u003eNo. It only polishes the surface and keeps the original colour layer.\u003c\/p\u003e\n\u003ch4\u003eHow often can I use the product?\u003c\/h4\u003e\n\u003cp\u003eAs many times as you like, as long as you work gently. It only takes off minimal layers of material.\u003c\/p\u003e\n\u003ch4\u003eCan I care for or seal it afterwards?\u003c\/h4\u003e\n\u003cp\u003eYes, Leather Shield or suitable care locks in the result.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 08.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1000 ml \/ 1 liter","offer_id":56584288600399,"sku":"D1-KCX-621-1L-01","price":79.99,"currency_code":"EUR","in_stock":true},{"title":"100ml","offer_id":56584288665935,"sku":"D1-KCX-621-100ML-01","price":31.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/621-1L-01_1.png?v=1765302002"},{"product_id":"koch-chemie-colourlock-rep-glue-spezialkleber-leder","title":"COLOURLOCK \"Rep Glue\" special adhesive for fixing small damage","description":"\u003ch2\u003eCOLOURLOCK Rep Glue — special adhesive for precise leather repairs\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat is COLOURLOCK Rep Glue for? — This special adhesive bonds leather and faux leather permanently, flexibly and right on the spot, and it's ideal for tears, lifted edges and repairs with a textile or leather backing.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Rep Glue\u003c\/strong\u003e is a highly effective, flexible-curing special adhesive for leather and faux-leather repairs. It's perfect for tears, split areas, lifted edges, backing patches and fixing small pieces of leather in place. The glue bonds the materials hard yet stays elastic, so it backs up repairs on parts that keep moving — bolsters, steering wheels, armrests, furniture edges, bags or shoes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong, flexible hold\u003c\/strong\u003e – Ideal for tears, edges and backing patches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise to work with\u003c\/strong\u003e – Controlled application for spot-on repairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad material compatibility\u003c\/strong\u003e – Works on leather, faux leather and textile backers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eBonding technology \u0026amp; how it works\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eRep Glue\u003c\/strong\u003e is built on an elastic, high-grab adhesive formula that stabilises the repair without making the material go stiff. The glue soaks well into the leather fibres and, once dry, forms a flexible bond that moves with the panel and stays load-bearing for the long haul. That keeps the spot from cracking open again, so repairs hold up to everyday use. It really shows its strength on structural damage or on repairs you plan to recolour later, where you want a solid base to build on.\u003c\/p\u003e\n\u003ch3\u003eHow to use it \u0026amp; best practices\u003c\/h3\u003e\n\u003cp\u003eClean the area you're repairing and let it dry fully. Then lay down \u003cstrong\u003eRep Glue\u003c\/strong\u003e thin and precise. On tears, back the spot with textile or leather before you smooth the surface with filler or binder. Let the glue dry all the way before any colour or top coat goes on. Wipe off any excess while it's still wet — it comes off easily. Because it stays flexible after curing, you can carry on working it professionally without hard transitions.\u003c\/p\u003e\n\u003ch3\u003eResults \u0026amp; where to use it\u003c\/h3\u003e\n\u003cp\u003eOnce it's dry you get a solid, lasting and still-elastic bond. \u003cstrong\u003eRep Glue\u003c\/strong\u003e is ideal for automotive leather, furniture, bags, shoes, accessories and interior parts. It's not a large-area laminating glue — it's made for precise repair points where you need firm hold and flexibility in equal measure. Perfect for prepping repairs that you'll then fill, colour and seal with a top coat.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Rep Glue\u003c\/h2\u003e\n\u003ch4\u003eHow strong is Rep Glue?\u003c\/h4\u003e\n\u003cp\u003eVery strong – the bond stays flexible and handles areas that take a lot of stress.\u003c\/p\u003e\n\u003ch4\u003eIs the glue suitable for faux leather?\u003c\/h4\u003e\n\u003cp\u003eYes, Rep Glue grips securely on leather and common types of faux leather.\u003c\/p\u003e\n\u003ch4\u003eCan I use filler or colour afterwards?\u003c\/h4\u003e\n\u003cp\u003eYes, as soon as the glue is fully dry.\u003c\/p\u003e\n\u003ch4\u003eHow do I apply Rep Glue correctly?\u003c\/h4\u003e\n\u003cp\u003eThin, precise and only on clean, dry surfaces; on tears, with a backing patch.\u003c\/p\u003e\n\u003ch4\u003eDoes Rep Glue make the leather stiff?\u003c\/h4\u003e\n\u003cp\u003eNo, it stays elastic and moves with the material.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 09.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"20 ml","offer_id":56584331460943,"sku":"D1-KCX-620-20ML-01","price":21.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/620-20ML-01_1.png?v=1778250912"},{"product_id":"koch-chemie-colourlock-licker-oil-rueckfetter-ledervorbereitung","title":"COLOURLOCK \"Licker Oil\" leather fatliquor for leather prep before professional repair","description":"\u003ch2\u003eCOLOURLOCK Licker Oil — leather fatliquor for professional leather prep\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat is COLOURLOCK Licker Oil used for? — The fatliquor makes dry, hard or brittle leather supple again, strengthens the fibres and improves prep for repairs, filling work and colour application.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Licker Oil\u003c\/strong\u003e is the professional fatliquor for prepping aged, dried-out or hardened leather. Hard-worked car seats, brittle furniture surfaces, old bags or saddle areas all benefit from the deep re-oiling that gets the leather fibres flexible again. Licker Oil makes sure repair materials like filler, binder or leather colour grab better and lay down more evenly. It's a key step when you want long-lasting results on leather that's gone structurally weak.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep-acting re-oiling\u003c\/strong\u003e – Gets hard, dry leather supple again and cuts the risk of cracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooths out repair work\u003c\/strong\u003e – Improves how filler, binder and colour grab and spread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for aged leather\u003c\/strong\u003e – Perfect for automotive, furniture, saddles, bags \u0026amp; accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eRe-oiling technology \u0026amp; how it works in the leather\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLicker Oil\u003c\/strong\u003e works its way deep into the leather structure and reactivates dried-out fibres that have lost their elasticity over the years. The re-oiling components settle into the gaps between the fibres and bring back the natural suppleness, without darkening the leather too much. On older automotive leather that's turned brittle especially, the fatliquor lowers the risk of cracks forming during mechanical repair work. The fibres get more flexible and more receptive, which makes the whole repair more stable and longer-lasting.\u003c\/p\u003e\n\u003ch3\u003ePrep, application \u0026amp; the best way to use it before repairs\u003c\/h3\u003e\n\u003cp\u003eBefore you apply it, give the leather a thorough prep with a suitable cleaner so the re-oiling components can soak in evenly. You lay \u003cstrong\u003eLicker Oil\u003c\/strong\u003e down in a thin coat and work it in with light pressure. After a short dwell time the oil soaks deep in and leaves a noticeably softer surface. Depending on the state of the leather, you can repeat the process. Only once the leather is flexible again do you start the structural repair: smooth the filler, lay down the colour, seal the surface. Licker Oil clearly improves every step that follows.\u003c\/p\u003e\n\u003ch3\u003eResults, use cases \u0026amp; how it differs from a softener\u003c\/h3\u003e\n\u003cp\u003eAfter treatment the leather feels much more supple, more elastic and more receptive to products like filler, binder or colour. \u003cstrong\u003eLicker Oil\u003c\/strong\u003e is perfect for old, dry or brittle leather in vehicles, furniture, bags, jackets and saddles. Unlike a softener such as Old Leather Softener, Licker Oil works more as a re-oiling prep and less as a long-term flexibiliser. It's the ideal first step before heavy repair work, where stability and suppleness make all the difference.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Licker Oil\u003c\/h2\u003e\n\u003ch4\u003eWhen do I use Licker Oil?\u003c\/h4\u003e\n\u003cp\u003eBefore repairs, when leather is hard, dry or brittle and needs to get flexible again.\u003c\/p\u003e\n\u003ch4\u003eDoes Licker Oil darken the leather?\u003c\/h4\u003e\n\u003cp\u003eOnly slightly. The effect is far smaller than with a lot of classic oils.\u003c\/p\u003e\n\u003ch4\u003eCan I repair right after?\u003c\/h4\u003e\n\u003cp\u003eYes, as soon as the oil has soaked in and the surface feels dry.\u003c\/p\u003e\n\u003ch4\u003eIs it suitable for all leather types?\u003c\/h4\u003e\n\u003cp\u003eIdeal for pigmented leather, finished smooth leather and many saddle and furniture leathers.\u003c\/p\u003e\n\u003ch4\u003eDo I also need a softener?\u003c\/h4\u003e\n\u003cp\u003eOnly with very hard, brittle leather – then combine Licker Oil and Old Leather Softener.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 09.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1000 ml \/ 1 liter","offer_id":56584343814479,"sku":"D1-KCX-618-1L-01","price":48.99,"currency_code":"EUR","in_stock":true},{"title":"250ml","offer_id":56584343847247,"sku":"D1-KCX-618-250ML-01","price":23.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/618-1L-01_1.png?v=1765302805"},{"product_id":"koch-chemie-colourlock-filler-white-leder-fuellstoff","title":"COLOURLOCK \"Filler\" (White) Air-Drying Filler for Elastic Covering of Surface Cracks and Holes","description":"\u003ch2\u003eCOLOURLOCK Filler (White) — white leather filler for precise repairs\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat is COLOURLOCK Filler White used for? — The white filler evens out scratches, dents and cracks in light leather and builds a smooth, stable base for colour, structure and sealing.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Filler (White)\u003c\/strong\u003e is a high-grade \u003cstrong\u003ewhite leather filler\u003c\/strong\u003e for repairs on light pigmented smooth leathers. It handles scratches, cracks, worn spots, edge chipping or deep scuffs, and once it dries it leaves a stable surface you can sand down fine. The white colour means repairs on white or very light leather build up cleanly and colour-neutral — perfect for automotive interiors, furniture, bags, sneakers and accessories.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade for light leather\u003c\/strong\u003e – A \u003cstrong\u003ewhite leather filler\u003c\/strong\u003e lets you build colour-neutral, invisible repairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSands fine \u0026amp; stays stable\u003c\/strong\u003e – For smooth, load-bearing, even surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrabs on well\u003c\/strong\u003e – Perfect as a base for colour, binder and top coat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFiller technology \u0026amp; how it works\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFiller (White)\u003c\/strong\u003e is built on an elastic, firm filler formula that bonds deep into the leather and forms a tough repair layer. Once it goes on, the material cures to a solid but flexible structure that sands and works beautifully. That lets you even out dents precisely and model damaged spots cleanly. The white pigment stops dark backgrounds from showing through and makes an even colour coat easy on light materials.\u003c\/p\u003e\n\u003ch3\u003eHow to apply it \u0026amp; best practices\u003c\/h3\u003e\n\u003cp\u003eBefore you fill, clean and degrease the leather thoroughly. You lay \u003cstrong\u003eFiller (White)\u003c\/strong\u003e down thin with a spatula, scalpel, brush or fine applicator tip. On deep damage, build it up in layers, each with a drying and sanding step in between. Once the surface is smooth and level, you match the colour with leather dye or Leather Fresh and finish by sealing with Top Coat. You can also thicken the filler with Thickener if you want more body.\u003c\/p\u003e\n\u003ch3\u003eResults, uses \u0026amp; benefits\u003c\/h3\u003e\n\u003cp\u003eAfter the work, the repaired area looks smooth, even and colour-neutral — an ideal base for a perfect finish. \u003cstrong\u003eFiller (White)\u003c\/strong\u003e works on white car seats, steering wheels, furniture, sneaker leather, boots, bags and light interior parts. It doesn't replace a backing patch on deep cracks, but it's the best base for every visible surface fix on light leather.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Filler (White)\u003c\/h2\u003e\n\u003ch4\u003eWhy a white filler?\u003c\/h4\u003e\n\u003cp\u003eIt stops dark spots from showing through and lets you make colour-neutral repairs on light leather.\u003c\/p\u003e\n\u003ch4\u003eCan the filler be sanded?\u003c\/h4\u003e\n\u003cp\u003eYes, once it's dry it sands and smooths really well.\u003c\/p\u003e\n\u003ch4\u003eIs Filler (White) flexible?\u003c\/h4\u003e\n\u003cp\u003eYes, it stays elastic enough for the way leather naturally moves.\u003c\/p\u003e\n\u003ch4\u003eDo I need colour afterwards?\u003c\/h4\u003e\n\u003cp\u003eYes, the filler is the base — then comes leather dye or Leather Fresh.\u003c\/p\u003e\n\u003ch4\u003eIs the filler suitable for faux leather?\u003c\/h4\u003e\n\u003cp\u003eYes, it works very well on many types of faux leather.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 10.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1000ml \/ 1 liter \/ White","offer_id":56584511881551,"sku":"D1-KCX-608-1L-01","price":176.99,"currency_code":"EUR","in_stock":true},{"title":"20 ml \/ White","offer_id":56584504213839,"sku":"D1-KCX-608-20ML-01","price":42.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/608-20ML-01_1.png?v=1765306083"},{"product_id":"koch-chemie-colourlock-leather-plastic-paste-waermehartende-spachtelmasse","title":"COLOURLOCK \"Leather \u0026 Plastic Paste\" Heat-Curing Filler Paste for Fast Repairs","description":"\u003ch2\u003eCOLOURLOCK Leather \u0026amp; Plastic Paste — heat-curing filler paste for leather \u0026amp; plastic\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat is COLOURLOCK Leather \u0026amp; Plastic Paste used for? — This heat-curing filler paste repairs deep cracks, holes and missing material in leather and plastic, and cures under heat into a particularly strong, hard-wearing repair.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Leather \u0026amp; Plastic Paste\u003c\/strong\u003e is a professional, heat-curing filler paste for repairing badly damaged leather and plastic surfaces. It's the one you grab for deep cracks, holes, breaks, chipped edges and missing material, where an ordinary filler just won't cut it anymore. Cure it with heat and you get a rock-solid, dimensionally stable base that you can then sand, texture, colour and seal.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-curing \u0026amp; high-strength\u003c\/strong\u003e – built for structural repairs that take real load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor leather \u0026amp; plastic\u003c\/strong\u003e – works across automotive and furniture jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA proper repair base\u003c\/strong\u003e – ideal for building up, shaping and finishing afterwards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eHeat-curing technology \u0026amp; how it works\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLeather \u0026amp; Plastic Paste\u003c\/strong\u003e is built on a special polymer formula that only cures fully once you apply heat. Warm it up in a controlled way (a heat gun does the job) and it sets into a hard, tough structure that shrugs off heavy mechanical load. The paste barely shrinks, holds its shape and is brilliant for rebuilding edges, contours and missing material — on leather and on plastic alike.\u003c\/p\u003e\n\u003ch3\u003eHow to apply it \u0026amp; best practices\u003c\/h3\u003e\n\u003cp\u003eBefore you start, the surface needs to be clean, dry and grease-free. Work \u003cstrong\u003eCOLOURLOCK Leather \u0026amp; Plastic Paste\u003c\/strong\u003e into the damaged spot with a spatula or modelling tool and rough it into shape. Then cure the paste with heat, keeping it controlled. Once it's cooled, you can sand, smooth and texture the repair. Depending on the damage, you can build the paste up in layers. After that comes the colour build-up and the seal with Top Coat.\u003c\/p\u003e\n\u003ch3\u003eResults, where it fits \u0026amp; where it doesn't\u003c\/h3\u003e\n\u003cp\u003eOnce cured, you're left with a very solid, hard-wearing repair that takes further work beautifully. \u003cstrong\u003eLeather \u0026amp; Plastic Paste\u003c\/strong\u003e is right at home on car seats, door cards, centre consoles, steering wheels, furniture, plastic trim and interior parts. It's not a fine filler for light scratches — it's a structural repair paste for bigger damage. For fine surface touch-ups afterwards, reach for a classic filler or Super Filler.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Leather \u0026amp; Plastic Paste\u003c\/h2\u003e\n\u003ch4\u003eWhy is the paste heat-curing?\u003c\/h4\u003e\n\u003cp\u003eThe heat gives you maximum strength and dimensional stability for structural repairs.\u003c\/p\u003e\n\u003ch4\u003eCan I use the paste on plastic?\u003c\/h4\u003e\n\u003cp\u003eYes, it's made specifically for leather and many plastics.\u003c\/p\u003e\n\u003ch4\u003eCan the paste be sanded?\u003c\/h4\u003e\n\u003cp\u003eYes, very well once it's fully cured.\u003c\/p\u003e\n\u003ch4\u003eDo I need a backing patch?\u003c\/h4\u003e\n\u003cp\u003eFor holes or bad cracks, a backing patch is recommended.\u003c\/p\u003e\n\u003ch4\u003eCan I colour it afterwards?\u003c\/h4\u003e\n\u003cp\u003eYes, after sanding you can colour and seal the area as normal.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 12\/12\/2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1000ml \/ 1 liter","offer_id":56616788820303,"sku":"D1-KCX-594-1L-01","price":241.99,"currency_code":"EUR","in_stock":true},{"title":"20 ml","offer_id":56616788787535,"sku":"D1-KCX-594-20ML-01","price":99.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/594-20ML-01_1.png?v=1767911713"},{"product_id":"koch-chemie-colourlock-filler-black-schleifbarer-fuellstoff-leder","title":"COLOURLOCK \"Filler\" (Black) Sandable Leather Filler for Flexible Repair of Surface Cracks and Holes","description":"\u003ch2\u003eCOLOURLOCK Filler (Black) — black leather filler for precise repairs\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat is COLOURLOCK Filler Black used for? — The black leather filler levels out scratches, cracks and dents in dark leather and builds a solid, colour-matched base for paint and top coat.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Filler (Black)\u003c\/strong\u003e is a high-grade black leather filler for repairs on dark and black pigmented smooth leather. It's ideal for levelling out scratches, cracks, scuffs, worn spots and minor edge damage. Thanks to its black pigment, the filler blends straight into dark leather and makes the colour build-up that follows a lot easier — perfect for automotive leather, furniture, bags, shoes and trim parts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade for dark leather\u003c\/strong\u003e – Black pigment keeps repair spots from showing up light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinely sandable \u0026amp; dimensionally stable\u003c\/strong\u003e – For smooth, clean repair areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal base for colour \u0026amp; sealing\u003c\/strong\u003e – Lifts the finish noticeably.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFiller technology \u0026amp; how it works\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFiller (Black)\u003c\/strong\u003e is built on a flexible, non-slumping filler formula that bonds firmly to the leather and, once dry, forms a tough repair layer. The black tint means repairs on dark leather stand out less and colour-match far better. The filler stays flexible enough to move with the leather, and once it's cured you can sand, smooth and texture it with no trouble.\u003c\/p\u003e\n\u003ch3\u003eApplication, build-up \u0026amp; best practices\u003c\/h3\u003e\n\u003cp\u003eBefore you start, clean and degrease the leather properly. You lay \u003cstrong\u003eCOLOURLOCK Filler (Black)\u003c\/strong\u003e down thin with a spatula, brush or a fine applicator tip. For deeper damage, build it up in layers, letting each one dry and giving it a light sand in between. Once the surface is level, you can match the colour with leather paint or Leather Fresh and seal it with Top Coat. Want more body? You can thicken the filler with Thickener.\u003c\/p\u003e\n\u003ch3\u003eResults, where to use it \u0026amp; the payoff\u003c\/h3\u003e\n\u003cp\u003eAfter the repair you're left with a smooth, even surface that blends right into dark leather. \u003cstrong\u003eFiller (Black)\u003c\/strong\u003e is ideal for black car seats, steering wheels, door cards, furniture, bags and shoes. It's no substitute for a backing patch on deep cracks, but it's the perfect base for high-quality surface repairs on dark leather.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Filler (Black)\u003c\/h2\u003e\n\u003ch4\u003eWhy a black filler?\u003c\/h4\u003e\n\u003cp\u003eIt stops light spots showing through and makes repairs on dark leather easier.\u003c\/p\u003e\n\u003ch4\u003eCan the filler be sanded?\u003c\/h4\u003e\n\u003cp\u003eYes — once dry it sands and smooths out beautifully.\u003c\/p\u003e\n\u003ch4\u003eIs Filler (Black) flexible?\u003c\/h4\u003e\n\u003cp\u003eYes, it stays flexible and moves with the leather.\u003c\/p\u003e\n\u003ch4\u003eDo I have to colour it afterwards?\u003c\/h4\u003e\n\u003cp\u003eYes, the filler is the base – you colour-match the surface after.\u003c\/p\u003e\n\u003ch4\u003eDoes the filler work on faux leather?\u003c\/h4\u003e\n\u003cp\u003eYes, it works well on many types of faux leather.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 12\/12\/2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1000ml \/ 1 Litre \/ Black \/ Black","offer_id":56616818278735,"sku":"D1-KCX-539-1L-01","price":176.99,"currency_code":"EUR","in_stock":true},{"title":"20 ml \/ Black \/ Black","offer_id":56616818245967,"sku":"D1-KCX-539-20ML-01","price":42.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/539-20ML-01_1.png?v=1765664040"},{"product_id":"koch-chemie-colourlock-spatula-short-flat-lederreparaturspachtel","title":"COLOURLOCK \"Spatula Short flat\" Short Leather Repair Spatula","description":"","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1 Stück","offer_id":58721399341391,"sku":"D1-KCX-9998435","price":14.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-colourlock-spatula-short-flat-lederreparaturspachtel.png?v=1788944642"},{"product_id":"koch-chemie-colourlock-spatula-duo-flat-lederreparaturspachtel","title":"COLOURLOCK \"Spatula Duo Flat\" Flat Spatula for Leather Repairs","description":"","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1 Stück","offer_id":58721403797839,"sku":"D1-KCX-9998427","price":28.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-colourlock-spatula-duo-flat-lederreparaturspachtel.png?v=1788944663"},{"product_id":"koch-chemie-colourlock-spatula-duo-ball-flat-lederreparaturspachtel","title":"COLOURLOCK \"Spatula Duo Ball \u0026 Flat\" Modelling Spatula for Leather Repairs","description":"","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1 Stück","offer_id":58721406943567,"sku":"D1-KCX-9998441","price":28.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-colourlock-spatula-duo-ball-flat-lederreparaturspachtel.png?v=1788944677"},{"product_id":"koch-chemie-colourlock-spatula-flat-long-lederreparaturspachtel","title":"COLOURLOCK \"Spatula Flat long\" Leather Repair Spatula with Wooden Handle","description":"","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1 Stück","offer_id":58721411006799,"sku":"D1-KCX-9998425","price":14.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/koch-chemie-colourlock-spatula-flat-long-lederreparaturspachtel.png?v=1788944694"}],"url":"https:\/\/detailing1.be\/en\/collections\/koch-chemie-colourlock-reparatur.oembed?page=2","provider":"Detailing1","version":"1.0","type":"link"}