{"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":176.23,"currency_code":"EUR","in_stock":true},{"title":"20 ml \/ Black \/ Black","offer_id":56616818245967,"sku":"D1-KCX-539-20ML-01","price":43.36,"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","url":"https:\/\/detailing1.it\/en\/products\/koch-chemie-colourlock-filler-black-schleifbarer-fuellstoff-leder","provider":"Detailing1","version":"1.0","type":"link"}