{"title":"Additives \u0026 aids by COLOURLOCK","description":"\u003ch2 id=\"speakable-headline\"\u003eAdditives \u0026amp; aids by COLOURLOCK are what make a recolour disappear\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat are COLOURLOCK's additives and aids? Additives you stir into leather dye, tinted filler or Top Coat to set gloss level, feel, abrasion resistance and body independently of each other, plus a protective gel that masks contrast stitching while you dye. None of these additives goes onto the leather neat.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eAdditives \u0026amp; aids by COLOURLOCK\u003c\/strong\u003e are the fine-tuning tools of the dyeing line from the leather specialist that has supplied repair businesses as Lederzentrum since 1995 and is now part of Koch-Chemie. They never go straight onto the surface; they always go into the cup first: into the leather dye, the tinted filler or the Top Coat. There they control gloss level, feel, hardness and viscosity independently. The dye gives you coverage; the additives decide whether the area matches the rest of the interior.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour properties, four separate dials.\u003c\/strong\u003e In this line, gloss level, feel, abrasion resistance and flow aren't tied to each other. You can make a mix more matte without making it softer, and harder without changing the gloss. That's exactly what a one-size-fits-all bottle with all four properties fixed at the factory can't do.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoses sit in the low single-digit percentage range.\u003c\/strong\u003e One to two per cent crosslinker in the Top Coat decides wet-rub resistance; one per cent more or less matting additive decides the visible gloss. So you dose step by step and check in between — you can always add more, but the only way back is a fresh mix.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmall packs, because the shares are small.\u003c\/strong\u003e The seam protection gel comes in 20 ml, the crosslinker in 50 ml, the thickener in 100 ml and the handle additives in 250 ml. Only the matting additive also comes as 1000 ml \/ 1 litre, because gloss level is the property people adjust most often.\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 Always mix up every additive blend on a test piece first, not on the seat. A palm-sized leather offcut or the hidden underside of a seat bolster will do: apply the mix, let it dry right through, then hold it up against the neighbouring area in daylight. Gloss judged wet is deceptive — a matting level that looks spot-on in the wet film routinely dries down too flat. Almost every enquiry we get about visible touch-ups comes down to exactly this: the shade was right, the gloss was judged on the wet coat and ended up one notch off. Two minutes on a test piece saves you rebuilding an entire panel.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eNo additive works alone; each one works in the mix\u003c\/h3\u003e\n\u003cp\u003eThe additives are the only group in the dyeing line that never ends up on the leather. They go into the cup beforehand, and how much you add decides the result across the whole area.\u003c\/p\u003e\n\n\u003cp\u003eThere's a practical reason for that. After dyeing, three properties are still open that no dye brings with it: how much the area shines, how it feels and how much friction it can take. On top of that come two purely hands-on problems — runny filler sags on vertical seat bolsters, and light contrast stitching picks up colour when you spray. For each of these jobs there's exactly one additive.\u003c\/p\u003e\n\n\u003cp\u003eThis split comes from the repair trade, not from marketing. A touch-up is never judged against a colour chart but against the area right next to it — and that has a specific gloss level, a specific feel and a factory hardness your fresh build-up has to hit. COLOURLOCK was born in 1995 at Lederzentrum, where exactly that comparison happens every day, and that's why it gives you dials rather than ready-made recipes.\u003c\/p\u003e\n\n\u003cp\u003eDay-to-day at Detailing1, we see when customers land on this shelf: almost never at the start of a project, but after the first pass. Dye and Top Coat are on, the work is clean, and it still screams \"repair\" — because it's shinier, feels slicker or squeaks when you slide across it. Those are three different problems with three different additives, and none of them is solved by more dye.\u003c\/p\u003e\n\n\u003ch3\u003eEach additive answers exactly one question about the mix\u003c\/h3\u003e\n\u003cp\u003eThe line breaks the finish down into properties you can adjust one by one, instead of bundling them into a single all-in-one bottle. If you know which question is still open, you find the additive in one step.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-mattierung\"\u003eMatting additive by COLOURLOCK\u003c\/a\u003e, COLOURLOCK \"Duller\", controls the look. It puts ultra-fine matting particles into the drying film that scatter incoming light in many directions instead of bouncing it straight back like a smooth painted surface. How you notice: the freshly dyed seat no longer throws back a reflection of the window and blends in next to the factory leather instead of lighting up from every angle. Available as 250 ml and as 1000 ml \/ 1 litre.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-griff-zusaetze\"\u003eSoft \u0026amp; Wax Slip handle additives by COLOURLOCK\u003c\/a\u003e control the feel. COLOURLOCK \"Soft Slip\" lowers the friction of the finished top layer; COLOURLOCK \"Wax Slip\" embeds fine wax particles in the surface and so changes its microstructure. In practice: your hand glides over the steering wheel rim instead of sticking to it, and the seat feels like leather rather than a coat of paint. Both come as 250 ml.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-vernetzer\"\u003eCrosslinker by COLOURLOCK\u003c\/a\u003e, COLOURLOCK \"Crosslinker CD\", controls durability. It ties the binder chains in the freshly mixed Top Coat together crosswise, turning a film that simply dries into a chemically closed network. In everyday use: the area stands up to sweaty hands, sun cream and interior cleaner instead of softening at the first damp wipe. The 50 ml bottle goes a long way, because one to two per cent in the Top Coat is enough.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-verdicker\"\u003eThickener by COLOURLOCK\u003c\/a\u003e, COLOURLOCK \"Thickener\", controls workability. It changes the flow of tinted filler without touching shade, adhesion or flexibility — a runny paste becomes one that stays put. In plain terms: you can model a deep groove on the vertical side bolster without the filler slumping while it dries. Pack size: 100 ml.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-nahtschutz\"\u003eSeam protection gel by COLOURLOCK\u003c\/a\u003e, COLOURLOCK \"Stitch Covering Gel\", is the only product in the group you don't stir in. It sits over the thread as a temporary, flexible barrier and blocks even fine overspray. Once the dye has dried through, you rub it off or lift it with a damp cloth, and because it contains no curing components, the stitching stays soft afterwards. The 20 ml tube covers many metres of seam.\u003c\/p\u003e\n\n\u003ch3\u003eSoft Slip feels velvety, Wax Slip grippy\u003c\/h3\u003e\n\u003cp\u003eCOLOURLOCK \"Soft Slip\" and COLOURLOCK \"Wax Slip\" look almost identical on the data sheet and produce two clearly different surfaces. The difference is whether your hand should glide or grip.\u003c\/p\u003e\n\n\u003cp\u003eCOLOURLOCK \"Soft Slip\" works via the surface energy of the top layer and lowers friction — the result is velvety and lets your hand slide off without resistance. That suits seat bases, armrests and furniture edges, i.e. anywhere clothing moves across the surface. COLOURLOCK \"Wax Slip\" goes the other way: the embedded wax particles make the surface rich and slightly grippy, just like modern automotive leather straight from the factory.\u003c\/p\u003e\n\n\u003cp\u003eOn the steering wheel rim, this difference isn't a matter of taste. A rim that's too slick feels unsafe with damp hands; one that's too grippy sticks very slightly to your palm and lets go with a jerk — that's where the squeak when manoeuvring comes from. Here, Wax Slip hits the factory feel far more often than Soft Slip. You can also combine both, which gives you a velvety surface with a waxy character underneath.\u003c\/p\u003e\n\n\u003cp\u003eOne rule makes choosing easier: matting, feel and crosslinking don't get in each other's way. You can put COLOURLOCK \"Duller\" for the look, COLOURLOCK \"Wax Slip\" for the feel and COLOURLOCK \"Crosslinker CD\" for resistance into the same Top Coat mix. So gloss level is no longer a question of which product you buy: instead of choosing between matte and gloss \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-top-coat\"\u003eTop Coat \u0026amp; finish by COLOURLOCK\u003c\/a\u003e, you blend both in proportion and fine-tune the rest with the matting additive.\u003c\/p\u003e\n\n\u003cp\u003eWhen people ask us about this difference, it's almost always the same situation: the touched-up seat bolster looks the right colour but feels wrong when you get in. In the vast majority of these cases, the surface came out too slick — a Top Coat without a handle additive dries as a closed skin of lacquer, and next to the aged leather beside it, that feels like plastic film.\u003c\/p\u003e\n\n\u003ch3\u003eThe order you mix in decides the result\u003c\/h3\u003e\n\u003cp\u003eThe dyeing line follows a fixed sequence: degrease, prime, fill, dye, seal with Top Coat, dial in the finish with additives. Each additive has its set place in that sequence.\u003c\/p\u003e\n\n\u003cp\u003eRight at the front comes the seam protection gel, before the first coat of colour. After \u003ca href=\"\/collections\/koch-chemie-colourlock-reinigung-entfetter\"\u003eDegreaser by COLOURLOCK\u003c\/a\u003e and sanding, you put a thin layer on the contrast stitching and leave it there until after the last colour coat. The thickener follows in the filling step and goes straight into the tinted filler from \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-fuellfarbe\"\u003eFilling colour by COLOURLOCK\u003c\/a\u003e until the paste holds its shape. Matting additive, handle additives and crosslinker go into the Top Coat last.\u003c\/p\u003e\n\n\u003cp\u003eWhen stirring them in, stick to a fixed order. Set gloss and feel first, stir thoroughly and judge — only then add the crosslinker fresh. The reason is pot life: once the crosslinker is in, the reaction is running and the mix has to be used promptly. So only mix as much as you'll spray in the next hour, and mix the rest fresh.\u003c\/p\u003e\n\n\u003cp\u003eTwo details get overlooked again and again. First, the matting additive is a solid and settles at the bottom of a standing bottle — if you don't stir it thoroughly before every pour, you under-dose in the first cup and over-dose in the last. Second, dry to the touch isn't chemically done: the area feels dry after minutes, but it's only fully crosslinked after 24 to 48 hours.\u003c\/p\u003e\n\n\u003cp\u003eWe've all underestimated settling at some point. We regularly see cases where the driver's and passenger's seats end up with two visibly different gloss levels after the same working day — mixed from the same bottle, just from the top third and the bottom third. So: stir before every new cup, not just at the start. For a full set of seats, better allow two days on your first project; from the second time on, a weekend will do.\u003c\/p\u003e\n\n\u003ch3\u003eAdditives won't rescue poor prep\u003c\/h3\u003e\n\u003cp\u003eNo additive in this group fixes a mistake made earlier in the process. Where adhesion is missing, even the crosslinker won't help.\u003c\/p\u003e\n\n\u003cp\u003eThe clearest limit is degreasing. Silicone-based interior dressings, hand cream and sun cream leave a film that neither primer nor dye will hold on. A crosslinked Top Coat on an uncleaned base doesn't become more durable; it just flakes off as a harder piece. Nor does an additive replace the shade: gloss, feel and hardness can be adjusted, but the exact tone comes from mixing the \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-lederfarben\"\u003eLeather dyes by COLOURLOCK\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eOver-dosing is the second limit, and we've managed it ourselves. Trying to match the very matte factory leather of an older interior exactly, we pushed the matting additive well beyond the recommended range. The gloss level was right afterwards, but the surface felt chalky and visibly wore at the first clean. The binder can only carry a limited amount of solids; beyond that, the film turns brittle. Since then we go up in one-per-cent steps and would rather accept a touch too much gloss.\u003c\/p\u003e\n\n\u003cp\u003eTwo further limits are hard ones. None of the additives is applied neat, because none of them forms a load-bearing film on its own. And the group has no business on open-pored aniline and nubuck leather: there's no top-coat system there for an additive to work in.\u003c\/p\u003e\n\n\u003cp\u003eThe third limit isn't about material but about safety. The outer bolsters of many seat backs contain the tear seam for the side airbag, a designed breaking point subject to documentation that must neither be painted over nor stiffened by crosslinked layers. The fact that the protective gel masks stitching cleanly changes nothing about that. Work on or right next to this seam belongs with a specialist upholsterer with proof of competence.\u003c\/p\u003e\n\n\u003ch3\u003eWhere you start depends on what's wrong\u003c\/h3\u003e\n\u003cp\u003eYour way into this group follows from whatever bothers you about the finished area. Each of the typical faults has exactly one starting point.\u003c\/p\u003e\n\n\u003cp\u003eIf the touched-up area is shinier than the leather next to it, \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-mattierung\"\u003eMatting additive by COLOURLOCK\u003c\/a\u003e is your product — by far the most common reason a clean dye job still stands out. If the area feels wrong, slick like film or squeaky when you slide, reach for the \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-griff-zusaetze\"\u003eSoft \u0026amp; Wax Slip handle additives by COLOURLOCK\u003c\/a\u003e: Soft Slip for a velvety glide, Wax Slip for the waxy, grippy factory feel.\u003c\/p\u003e\n\n\u003cp\u003eIf the fresh colour rubs off on a jeans seam or belt buckle, or transfers onto light clothing, it's missing crosslinking — then one to two per cent from the \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-vernetzer\"\u003eCrosslinker by COLOURLOCK\u003c\/a\u003e shelf goes into the Top Coat. If thin filler runs down vertical bolsters, \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-verdicker\"\u003eThickener by COLOURLOCK\u003c\/a\u003e sorts it. And if you've got light contrast stitching on dark leather, mask it with \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben-nahtschutz\"\u003eSeam protection gel by COLOURLOCK\u003c\/a\u003e before the first coat of colour instead of painstakingly freeing it up afterwards.\u003c\/p\u003e\n\n\u003cp\u003eIf you're planning the whole job from scratch, you'll find the full build-up one level up: \u003ca href=\"\/collections\/koch-chemie-colourlock-faerben\"\u003eBack to Dyeing \u0026amp; finishing by COLOURLOCK\u003c\/a\u003e. There, the additives are the last step and also the only one that takes its cue from the neighbouring area rather than from a data sheet value.\u003c\/p\u003e\n\n\u003cp\u003eAnd the point that explains the whole group: most visible touch-ups don't fail on shade; they fail on gloss. The eye only spots a colour difference from half a metre away, but it sees a gloss edge from across the cabin, because light breaks on it differently. If you only take one additive from this shelf, take the matting additive.\u003c\/p\u003e","products":[{"product_id":"koch-chemie-colourlock-crosslinker-cd-vernetzer","title":"COLOURLOCK \"Crosslinker CD\" Hardener","description":"\u003ch2\u003eCOLOURLOCK Crosslinker CD — Hardener for maximum durability of leather dyes \u0026amp; coatings\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat is COLOURLOCK Crosslinker CD for? — The hardener clearly boosts the abrasion, water and chemical resistance of COLOURLOCK dyes and coatings, giving you long-lasting, professional repair and dyeing results.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Crosslinker CD\u003c\/strong\u003e is the professional hardener for every COLOURLOCK dye and coating system. You mix a small amount into the dye or top-coat, and it makes the finished surface harder, tougher and far more hard-wearing. On high-wear leather and plastic surfaces in particular – think steering wheels, seat bolsters, furniture edges or grab areas – Crosslinker CD bumps up durability significantly. Ideal for cars, furniture, bags, interiors and anywhere that takes a beating, mechanically or chemically.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoosts abrasion \u0026amp; scratch resistance\u003c\/strong\u003e – The dye lasts longer and stays put, even on surfaces that get hammered daily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetter all-round resistance\u003c\/strong\u003e – Improves resistance to water, sweat, cleaning agents and alcohol.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional repair quality\u003c\/strong\u003e – A must for COLOURLOCK dye builds and top-coats that go the distance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eCrosslinking technology \u0026amp; how it works in the dye film\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCrosslinker CD\u003c\/strong\u003e drives the chemical crosslinking of the binders inside the dye or top-coat. That crosslinking knits a denser polymer film – harder, more abrasion-resistant and tougher against moisture, sweat, cleaners and mechanical load. The formula is dialled in exactly for COLOURLOCK dye systems and kicks in once the dye film has dried and cured. According to Koch-Chemie, the result is a professional, rugged coating that stays stable for the long haul, even on heavily used leather parts.\u003c\/p\u003e\n\u003ch3\u003eMixing, processing \u0026amp; best-practice application\u003c\/h3\u003e\n\u003cp\u003eYou blend \u003cstrong\u003eCrosslinker CD\u003c\/strong\u003e sparingly into the COLOURLOCK dye or top-coat. The hardener activates the coating, so you have to use the mixed batch within a set window. Lay the mix down with a sponge, brush or spray gun. It really earns its keep on steering wheels, armrests, seat bolsters or bag handles, where you want maximum durability. Once it's on, let the crosslinked layer dry and cure all the way through before you put the surface back to work. Crosslinker CD isn't a standalone product – it goes in only as an additive to dyes and clear coats.\u003c\/p\u003e\n\u003ch3\u003eResults, use cases \u0026amp; the payoff in detail\u003c\/h3\u003e\n\u003cp\u003eAfter you use \u003cstrong\u003eCrosslinker CD\u003c\/strong\u003e, you get a heavy-duty, longer-lasting dye or clear coat. The surface feels more stable, less touchy, and shrugs off everyday use far better. Ideal for vehicle detailing, furniture restoration, bag and shoe repairs or commercial work. Crosslinker CD doesn't replace cleaning, prep or structural repair – it only dials up the durability of the final dye layer, which makes it a step you can't skip on top-tier leather repairs.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Crosslinker CD\u003c\/h2\u003e\n\u003ch4\u003eHow much crosslinker goes into the dye?\u003c\/h4\u003e\n\u003cp\u003eJust a small amount, per the manufacturer's spec. Too much hurts how the mix works.\u003c\/p\u003e\n\u003ch4\u003eCan I apply Crosslinker CD neat?\u003c\/h4\u003e\n\u003cp\u003eNo. It's only meant as an additive for dyes and top-coats.\u003c\/p\u003e\n\u003ch4\u003eDoes the hardener make the dye harder?\u003c\/h4\u003e\n\u003cp\u003eYes. The coating gets more abrasion-resistant and tougher, but stays elastic enough for leather.\u003c\/p\u003e\n\u003ch4\u003eHow long is the mix workable?\u003c\/h4\u003e\n\u003cp\u003eOnly for a limited time. Once mixed, use it promptly.\u003c\/p\u003e\n\u003ch4\u003eIs Crosslinker CD suitable for all COLOURLOCK dyes?\u003c\/h4\u003e\n\u003cp\u003eYes. It works with Leather Fresh, leather dye, top-coats and the system's plastic dyes.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 03.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"50 mL","offer_id":56544924467535,"sku":"D1-KCX-687-50ML-01","price":31.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/687-50ML-01_1.png?v=1778250890"},{"product_id":"koch-chemie-colourlock-duller-mattierungszusatz","title":"COLOURLOCK \"Duller\" matting additive for professional use","description":"\u003ch2\u003eCOLOURLOCK Duller — matting additive for a clean, natural matte finish on leather \u0026amp; plastic\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Duller do? — The matting additive knocks back the gloss of COLOURLOCK colours and top coats, gives you a natural, OEM-style matte finish and keeps repaired areas from looking greasy or patchy.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Duller\u003c\/strong\u003e is the pro matting additive for every COLOURLOCK colour and clear-coat system. You mix it straight into your colours or top coats to drop the gloss level and build a genuine, natural matte surface. With modern automotive leathers or matte furniture finishes, getting the gloss dialled in is what makes a repair or recolour blend into the rest — nobody should be able to spot it. Duller keeps the panel from going greasy, too shiny or blotchy once the repair is done.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEven matting\u003c\/strong\u003e – No shiny spots, just a natural, factory-correct look across the surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable\u003c\/strong\u003e – Tune the matte level by how much you add, so you can match the original spot on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional finish\u003c\/strong\u003e – Made for leather and plastic repairs on cars, furniture and interiors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eMatting technology \u0026amp; how it works in the colour film\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDuller\u003c\/strong\u003e carries finely tuned matting particles that scatter light evenly and pull the gloss out of the coating film. As it dries it lays down a stable matte polymer film that won't wash out the colour or hide the grain. The chemistry is built so the leather coating keeps its flex — a big deal on bits that move, like seat bolsters, grab handles or trim parts. Koch-Chemie says the additive gets you an OEM-close finish even on the trickier matte levels of modern coated leathers.\u003c\/p\u003e\n\u003ch3\u003eMixing, application \u0026amp; handling notes\u003c\/h3\u003e\n\u003cp\u003eYou mix \u003cstrong\u003eDuller\u003c\/strong\u003e straight into COLOURLOCK colours or top coats. The dose sets the final matte level: a little gives you a satin matte, more takes it deep matte. Go too heavy on the Duller, though, and you start to weaken the colour film, so it pays to creep up on the gloss level you want rather than dumping it in. Stir the mix through properly and lay it down soon after. Apply with a sponge, airbrush, gun or dabbing — whatever the job calls for. Spot on for steering wheels, seat faces, furniture edges and any repair where an even matte look is the whole point.\u003c\/p\u003e\n\u003ch3\u003eResults, where to use it \u0026amp; how it differs from Dull\/Gloss products\u003c\/h3\u003e\n\u003cp\u003eOnce it's done you get a natural matte, even finish with no shiny islands or greasy patches. Repairs sit in better and pretty much disappear. \u003cstrong\u003eDuller\u003c\/strong\u003e earns its keep anywhere the original gloss has to be matched exactly: car interiors, furniture, bags, shoes, dashboards or plastic surfaces. It isn't a stand-in for Leather Fresh Dull — it's an additive for the colour mix, there to steer the matte level and light reflection precisely. For pure finish touch-ups with no colour mixing, reach for Leather Fresh Dull (Neutral) instead.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Duller\u003c\/h2\u003e\n\u003ch4\u003eCan I use Duller on its own?\u003c\/h4\u003e\n\u003cp\u003eNo. It's only meant as an additive for colours and top coats.\u003c\/p\u003e\n\u003ch4\u003eHow does the dose change the result?\u003c\/h4\u003e\n\u003cp\u003eMore Duller = a matter finish. Creeping up on it stops you over-matting.\u003c\/p\u003e\n\u003ch4\u003eDoes Duller change the colour coverage?\u003c\/h4\u003e\n\u003cp\u003eMinimally, maybe. Dosed right, the coverage stays stable.\u003c\/p\u003e\n\u003ch4\u003eIs Duller suitable for all COLOURLOCK colour systems?\u003c\/h4\u003e\n\u003cp\u003eYes. It works in leather colours, Leather Fresh, top coats and plastic colours.\u003c\/p\u003e\n\u003ch4\u003eCan I combine Duller with Crosslinker?\u003c\/h4\u003e\n\u003cp\u003eYes. The two work together in the mix: Duller for the look, Crosslinker for durability.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 03\/12\/2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"1000 ml \/ 1 liter","offer_id":56546988228943,"sku":"D1-KCX-526-1L-01","price":65.99,"currency_code":"EUR","in_stock":true},{"title":"250ml","offer_id":56546988261711,"sku":"D1-KCX-526-250ML-01","price":23.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/526-1L-01_1.png?v=1764797967"},{"product_id":"koch-chemie-colourlock-soft-slip-top-coat-zusatz-samtige-oberflaeche","title":"COLOURLOCK \"Soft Slip\" Top Coat additive for a velvety surface","description":"\u003ch2\u003eCOLOURLOCK Soft Slip — Top Coat additive for a velvety-soft leather surface\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Soft Slip do? — The additive gives COLOURLOCK top coats a velvety-soft feel, cuts down friction and delivers a skin-pleasant, luxurious finish on leather and synthetic leather.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Soft Slip\u003c\/strong\u003e is the pro additive for COLOURLOCK top coats when you want a particularly soft, skin-pleasant feel on leather or synthetic leather. It lowers the friction, improves the grip and gives a velvety, high-end finish – perfect for steering wheels, seats, furniture, bags and any area that should feel soft and supple. Ideal after a colour or repair job, to take the surface up to a premium level not just to the eye but by feel too.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVelvety grip\u003c\/strong\u003e – Gives top coats a soft, luxurious touch finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower friction\u003c\/strong\u003e – Ideal for contact areas that should feel less tacky and nicer in the hand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro feel-tuning\u003c\/strong\u003e – Perfect as the final step after colour build-up or repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFeel technology \u0026amp; how it works in the top coat\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSoft Slip\u003c\/strong\u003e changes the surface energy of the top coat, so the final coating generates less friction. That makes the leather feel softer, smoother and more velvety – without a greasy sheen or artificial slickness. The special additive formula stays stable in the dried top coat, so the effect keeps coming through for good. According to the maker, Soft Slip pairs especially well with matte or satin-matte top coats, since that's where the difference in feel stands out most.\u003c\/p\u003e\n\u003ch3\u003eMixing, application \u0026amp; getting it spot-on\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSoft Slip\u003c\/strong\u003e mixes straight into the COLOURLOCK top coat. The dosage sets how intense the velvety finish gets – a little for slight smoothness, more for a maximum-soft feel. Once it's mixed in thoroughly, you lay the top coat down as usual with a sponge, airbrush or spray gun. The additive has no effect on colour coverage, it's purely there for the feel and works perfectly alongside other additives like Duller or Crosslinker CD. The key is an even application, so the grip comes out uniform.\u003c\/p\u003e\n\u003ch3\u003eResults, uses \u0026amp; how it differs from other additives\u003c\/h3\u003e\n\u003cp\u003eOnce it's dry you get a pleasantly soft, almost velvety surface that feels noticeably more high-end. \u003cstrong\u003eSoft Slip\u003c\/strong\u003e suits steering wheels, seats, armrests, furniture, bags or clothing – anywhere premium feel matters. It's not a gloss control (that's Duller's job) and not a durability booster (Crosslinker CD handles that). It's a pure feel-enhancer that lifts the surface to a classy, supple level.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Soft Slip\u003c\/h2\u003e\n\u003ch4\u003eDoes Soft Slip change the gloss level?\u003c\/h4\u003e\n\u003cp\u003eNo. It affects the feel, not the gloss. For matting, Duller is the right additive.\u003c\/p\u003e\n\u003ch4\u003eCan I mix Soft Slip with Crosslinker?\u003c\/h4\u003e\n\u003cp\u003eYes. Both can go into the top coat together.\u003c\/p\u003e\n\u003ch4\u003eDoes Soft Slip make the leather slippery?\u003c\/h4\u003e\n\u003cp\u003eNo, just soft and pleasant. It cuts friction without taking away control.\u003c\/p\u003e\n\u003ch4\u003eIs Soft Slip suitable for synthetic leather too?\u003c\/h4\u003e\n\u003cp\u003eYes. The effect works on synthetic leather just as well as on real leather.\u003c\/p\u003e\n\u003ch4\u003eWhen do I apply Soft Slip?\u003c\/h4\u003e\n\u003cp\u003eIn the last step – as part of the final top coat, after colour, repair or texture build-up.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 03.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"250ml","offer_id":56547051012431,"sku":"D1-KCX-527-250ML-01","price":24.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/527-250ML-01_1.png?v=1778250893"},{"product_id":"koch-chemie-colourlock-wax-slip-top-coat-zusatz-wachsartige-oberflaechen","title":"COLOURLOCK \"Wax Slip\" Top Coat additive for waxy surfaces","description":"\u003ch2\u003eCOLOURLOCK Wax Slip — Top Coat additive for waxy, naturally grippy leather surfaces\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Wax Slip do? — The additive gives COLOURLOCK Top Coats a waxy, grippy-matte feel and creates a natural, slightly waxy OEM finish on leather and synthetic leather.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Wax Slip\u003c\/strong\u003e is the specialist additive for COLOURLOCK Top Coats when you want a waxy, slightly grippy and naturally matte surface. Plenty of modern automotive, furniture and interior leathers have exactly that subtle, waxy-grippy feel that makes a repair look genuinely original. Wax Slip tweaks the surface energy of the Top Coat, so the finish never feels slick or glossy — it feels satisfyingly full, natural and high-end.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaxy feel\u003c\/strong\u003e – Gives you the grippy, natural surface you see on modern OEM automotive leather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuned feel in the finish\u003c\/strong\u003e – Ideal for leather that's meant to look less slick on purpose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixes with other Top Coat additives\u003c\/strong\u003e – Works with Duller, Crosslinker \u0026amp; Soft Slip.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFeel \u0026amp; wax-film technology in the Top Coat\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWax Slip\u003c\/strong\u003e is built on fine, structure-forming wax additives that stay embedded in the top layer as the Top Coat dries. That gives you a grippy-matte, slightly waxy surface, the kind you get on modern matte leathers. The additives change the micro-structure of the coating without touching its opacity. The leather looks less slick, feels fuller and reflects light more naturally. On repairs to steering wheels, seat cushions, armrests or furniture panels it lets you build an extremely authentic OEM finish.\u003c\/p\u003e\n\u003ch3\u003eMixing, application \u0026amp; best practice for an authentic feel\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWax Slip\u003c\/strong\u003e goes straight into the COLOURLOCK Top Coat. How much you add sets the level of waxy grip: a little gives a subtle feel, more builds a clearer, fuller grip. Once it's mixed in well, you lay the modified Top Coat down as usual with a spray gun, airbrush or sponge. Paired with Duller (for matte), Soft Slip (for softer) or Crosslinker CD (for durability), you can dial the final finish in to match the original leather exactly. Lay it down evenly so the feel stays consistent across the whole panel.\u003c\/p\u003e\n\u003ch3\u003eResults, where to use it \u0026amp; how it differs from Soft Slip \/ Duller\u003c\/h3\u003e\n\u003cp\u003eOnce it's dry you get a slightly grippy, waxy surface that feels genuinely natural and high-end. \u003cstrong\u003eWax Slip\u003c\/strong\u003e is ideal for matte automotive leather, interior zones, furniture, bags and any leather with a “waxy OEM finish”. Next to Soft Slip (velvety softness), Wax Slip gives a grippier, more natural feel. Duller controls the gloss, Wax Slip shapes the surface texture. Together they get you an extremely authentic, factory-original leather look.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Wax Slip\u003c\/h2\u003e\n\u003ch4\u003eDoes Wax Slip change the gloss level?\u003c\/h4\u003e\n\u003cp\u003eOnly marginally. For real matting, Duller is the one to reach for.\u003c\/p\u003e\n\u003ch4\u003eCan I combine Wax Slip with Soft Slip?\u003c\/h4\u003e\n\u003cp\u003eYes — you'll get a mix of velvety and waxy-grippy feel.\u003c\/p\u003e\n\u003ch4\u003eDoes the surface get slippery?\u003c\/h4\u003e\n\u003cp\u003eNo. Wax Slip is built to add grip, not slickness.\u003c\/p\u003e\n\u003ch4\u003eDoes Wax Slip work on synthetic leather too?\u003c\/h4\u003e\n\u003cp\u003eYes, the effect comes through just as well there.\u003c\/p\u003e\n\u003ch4\u003eWhen do you use Wax Slip?\u003c\/h4\u003e\n\u003cp\u003eAs an additive in the final Top Coat – after colour, binder or texture repair.\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":"250ml","offer_id":56562378604879,"sku":"D1-KCX-626-250ML-01","price":24.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/626-250ML-01_1_d0121c88-fd76-42cc-8437-1ff7d9ac7de0.png?v=1778250903"},{"product_id":"koch-chemie-colourlock-thickener-verdickungs-additiv","title":"COLOURLOCK \"Thickener\" additive for thickening coloured filler","description":"\u003ch2\u003eCOLOURLOCK Thickener — additive for thickening coloured filler for precise leather repairs\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat does COLOURLOCK Thickener do? — The additive raises the viscosity of coloured filler, gives you more control during application and lets you do precise structure and edge repairs without running or slumping.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Thickener\u003c\/strong\u003e is the pro additive for thickening coloured filler (Fluid Leather \/ leather filler) exactly where you need it. It keeps filler standing stable, stops it running and makes it easier to shape – ideal for deeper scratches, cracks, chipped edges and structural repairs on leather and synthetic leather. Thickener lets you work in control, holds its shape better and gives you a reliable base for the colour and finish coats that follow.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetter stand-up strength\u003c\/strong\u003e – filler stays where it belongs, without slumping or flattening out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise shaping\u003c\/strong\u003e – ideal for edges, deep defects and textured areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks with COLOURLOCK fillers\u003c\/strong\u003e – pairs perfectly with coloured filler and structural repair products.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eViscosity technology \u0026amp; how it works\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThickener\u003c\/strong\u003e changes the rheology of the coloured filler without touching its adhesion, elasticity or colour. The additive makes the filler thicker, more shape-stable and easier to control. That matters most on vertical surfaces or repairs where you have to model the material – around edges, deep grooves or worn seat bolsters. The formula stops it sinking back as it dries and gives you a precise, even repair.\u003c\/p\u003e\n\u003ch3\u003eApplication, dosing \u0026amp; best practice\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThickener\u003c\/strong\u003e goes straight into the coloured filler. Even small amounts are enough to hit the viscosity you want. Once it's stirred in you get a mouldable, easy-to-control mass you can work with a spatula, brush or fine application technique. The key is to dose it step by step so you don't over-thicken. After you lay it down, sand the repair, texture it (if needed) and finish the colour. Thickener lifts repair quality noticeably – especially on tricky shapes.\u003c\/p\u003e\n\u003ch3\u003eResults, uses \u0026amp; benefits\u003c\/h3\u003e\n\u003cp\u003eWith \u003cstrong\u003eThickener\u003c\/strong\u003e your filler work comes out cleaner, sharper and truer to shape. Repairs on edges, deep scratches and textured leather look more even and hold up better. It really shows its strengths on automotive leather, furniture repairs, bags, shoes and interior parts. It rounds out coloured filler perfectly, but it doesn't replace a primer or colour coats – it only optimises how the material handles and stands up.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Thickener\u003c\/h2\u003e\n\u003ch4\u003eHow much Thickener should I add?\u003c\/h4\u003e\n\u003cp\u003eOnly small amounts. Dose it step by step until you hit the viscosity you want.\u003c\/p\u003e\n\u003ch4\u003eDoes Thickener change the colour of the filler?\u003c\/h4\u003e\n\u003cp\u003eNo. It only affects the consistency, not the shade.\u003c\/p\u003e\n\u003ch4\u003eCan I use Thickener with any COLOURLOCK filler?\u003c\/h4\u003e\n\u003cp\u003eYes, it's made for exactly that and works with coloured filler.\u003c\/p\u003e\n\u003ch4\u003eIs Thickener suitable for large areas too?\u003c\/h4\u003e\n\u003cp\u003eYes, especially handy on structural repairs or vertical areas.\u003c\/p\u003e\n\u003ch4\u003eDoes Thickener affect durability?\u003c\/h4\u003e\n\u003cp\u003eNo. The filler stays just as tough; the application just gets more precise.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 06.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"100ml","offer_id":56584171422031,"sku":"D1-KCX-624-100ML-01","price":31.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/624-100ML-01_1.png?v=1778250907"},{"product_id":"koch-chemie-colourlock-stitch-covering-gel-schutzgel-faerbeprozess","title":"COLOURLOCK \"Stitch Covering Gel\" protective gel for masking seams and logos during the dyeing process","description":"\u003ch2\u003eCOLOURLOCK Stitch Covering Gel — protective gel for masking seams during the dyeing process\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eWhat is COLOURLOCK Stitch Covering Gel for? — The gel protects seams, contrast stitching and light threads while you dye, and stops colour from bleeding into the seam or darkening it.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOLOURLOCK Stitch Covering Gel\u003c\/strong\u003e is a specialised protective gel that reliably masks seams, light threads and contrast stitching all through the dyeing process. Plenty of leather in the automotive, furniture and fashion world carries light or decorative stitching that shouldn't pick up any colour when you dye. The gel keeps dye out of the seam structure, so the clean, high-contrast stitch pattern stays fully intact.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects seams while dyeing\u003c\/strong\u003e – Keeps leather dye out of the stitching threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for contrast stitching\u003c\/strong\u003e – Preserves light stitching on dark leather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully controllable\u003c\/strong\u003e – Goes on precisely and comes off without a trace.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eProtective-film technology \u0026amp; how it works\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStitch Covering Gel\u003c\/strong\u003e forms a temporary, flexible barrier over the seam. The gel body sits on the threads without running or affecting the surface, and blocks colour uptake for the whole dyeing process. Once applied, the gel dries slightly but stays elastic, so it lifts off easily after the dye or top-coat step. That keeps the threads clean, light and visually untouched – a make-or-break detail on high-end OEM interiors and designer leather goods.\u003c\/p\u003e\n\u003ch3\u003eApplication, laydown \u0026amp; best-practice tips\u003c\/h3\u003e\n\u003cp\u003ePrep and clean the leather as usual. Then lay the \u003cstrong\u003eStitch Covering Gel\u003c\/strong\u003e down precisely on the seams with a brush, fine nozzle or spatula. A thin, even film is enough. After that you can dye, dab or spray as normal without any colour creeping into the seam. Once the dye has dried, gently rub or rinse the gel away – the seam comes back clean and in its original colour. Ideal for light stitching on dark seat bolsters, steering wheels, furniture edges, bags or shoes.\u003c\/p\u003e\n\u003ch3\u003eResults, uses \u0026amp; benefits\u003c\/h3\u003e\n\u003cp\u003eAfter the job the seams stay crisp, precise and unstained, while the leather surface takes the dye evenly all over. \u003cstrong\u003eStitch Covering Gel\u003c\/strong\u003e works on automotive leather, furniture covers, bags, shoes, equestrian gear and anywhere contrast stitching is part of the design. It's not a filler and not a dye — it's a temporary protective film that keeps the pro look of high-end leather work.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon questions about COLOURLOCK Stitch Covering Gel\u003c\/h2\u003e\n\u003ch4\u003eCan I use the gel on any seam?\u003c\/h4\u003e\n\u003cp\u003eYes, on light, dark, thick and fine seams – it protects every common thread type.\u003c\/p\u003e\n\u003ch4\u003eHow do I get the gel off again?\u003c\/h4\u003e\n\u003cp\u003eAfter dyeing, just rub it off gently or lift it with a slightly damp cloth.\u003c\/p\u003e\n\u003ch4\u003eCan the gel affect the colour?\u003c\/h4\u003e\n\u003cp\u003eNo, it only acts as a barrier over the seam and doesn't change how the dye goes on.\u003c\/p\u003e\n\u003ch4\u003eDoes it work with spray application too?\u003c\/h4\u003e\n\u003cp\u003eYes, the protective film reliably blocks fine colour mist as well.\u003c\/p\u003e\n\u003ch4\u003eDoes the seam stay soft after removal?\u003c\/h4\u003e\n\u003cp\u003eYes, because the gel contains no hardening components.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: 07.12.2025 — Author: Daniel (Detailing1)\u003c\/small\u003e\u003c\/p\u003e","brand":"Koch-Chemie × COLOURLOCK","offers":[{"title":"20 ml","offer_id":56584231616847,"sku":"D1-KCX-622-20ML-01","price":19.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/622-20ML-01_1.png?v=1778250909"}],"url":"https:\/\/detailing1.eu\/collections\/koch-chemie-colourlock-faerben-additive.oembed","provider":"Detailing1","version":"1.0","type":"link"}