{"product_id":"koch-chemie-colourlock-filler-black-schleifbarer-fuellstoff-leder","title":"COLOURLOCK \"Filler\" (Black) Sandable filler for the elastic covering 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 evens out scratches, cracks and depressions on dark leather, creating a stable, color-matched base for color 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-quality, black leather filler for repairs to dark and black pigmented smooth leathers. It is ideal for leveling scratches, cracks, scuffs, worn areas and minor edge damage. Thanks to its black pigmentation, the filler visually blends harmoniously into dark leather surfaces and significantly facilitates subsequent color application — perfect for automotive leather, furniture, bags, shoes and interior parts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal for dark leather\u003c\/strong\u003e – Black pigmentation prevents light repair spots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinely sandable \u0026amp; dimensionally stable\u003c\/strong\u003e – For smooth, clean repair surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal base for color \u0026amp; sealant\u003c\/strong\u003e – Significantly improves the finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFiller Technology \u0026amp; Mechanism of Action\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFiller (Black)\u003c\/strong\u003e is based on an elastic, stable filler formula that securely bonds with the leather and forms a resilient repair layer after drying. The black coloring ensures that repairs on dark leather are less noticeable and can be better color-matched. The filler remains flexible enough to move with the leather and can be easily sanded, smoothed, and textured after curing.\u003c\/p\u003e\n\u003ch3\u003eApplication, Coverage \u0026amp; Best Practices\u003c\/h3\u003e\n\u003cp\u003eBefore application, the leather should be thoroughly cleaned and degreased. \u003cstrong\u003eCOLOURLOCK Filler (Black)\u003c\/strong\u003e is applied thinly with a spatula, brush or fine applicator tip. For deeper damage, a layered application with intermediate drying and light sanding is recommended. Once the surface is even, it can be color-matched with leather dye or Leather Fresh and then sealed with Top Coat. For more stability, the filler can optionally be thickened with Thickener.\u003c\/p\u003e\n\u003ch3\u003eResults, Areas of Application \u0026amp; Benefits\u003c\/h3\u003e\n\u003cp\u003eAfter the repair, a smooth, homogeneous surface is created that blends perfectly into dark leather. \u003cstrong\u003eFiller (Black)\u003c\/strong\u003e is ideal for black car seats, steering wheels, door panels, furniture, bags, and shoes. It is not a substitute for backing deep cracks, but it provides the optimal basis for high-quality surface repairs on dark leathers.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions about COLOURLOCK Filler (Black)\u003c\/h2\u003e\n\u003ch4\u003eWhy a black filler?\u003c\/h4\u003e\n\u003cp\u003eIt prevents light bleed-through and facilitates repairs on dark leather.\u003c\/p\u003e\n\u003ch4\u003eCan the filler be sanded?\u003c\/h4\u003e\n\u003cp\u003eYes, it is very easy to sand and smooth after drying.\u003c\/p\u003e\n\u003ch4\u003eIs Filler (Black) flexible?\u003c\/h4\u003e\n\u003cp\u003eYes, it remains elastic and flexes with the leather.\u003c\/p\u003e\n\u003ch4\u003eDo I have to dye it afterwards?\u003c\/h4\u003e\n\u003cp\u003eYes, the filler is the base - the surface is then color-matched.\u003c\/p\u003e\n\u003ch4\u003eIs the filler suitable for artificial leather?\u003c\/h4\u003e\n\u003cp\u003eYes, it is very suitable for many types of artificial 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":182.96,"currency_code":"EUR","in_stock":true},{"title":"20 ml \/ Black \/ Black","offer_id":56616818245967,"sku":"D1-KCX-539-20ML-01","price":45.01,"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.at\/en\/products\/koch-chemie-colourlock-filler-black-schleifbarer-fuellstoff-leder","provider":"Detailing1","version":"1.0","type":"link"}