{"product_id":"bostik-cementone-colour-for-cement-black-1kg-6-box","title":"Bostik Cementone Colour for Cement Black 1kg","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eBostik Cementone Colour for Cement in Black is a concentrated powder pigment formulated for colouring cement-based materials such as concrete, mortars, renders, and screeds. It uses finely ground, lightfast carbon black pigments that disperse easily into dry mixes, ensuring even colour distribution throughout the cured material. \u003cbr\u003e\u003cbr\u003eWhen incorporated correctly, it produces consistent, through-coloured results rather than surface coatings, giving long-lasting and UV-stable shades ranging from deep black to charcoal grey tones. \u003cbr\u003e\u003cbr\u003eThe formulation does not compromise the mechanical strength, setting characteristics, or durability of cementitious materials, making it suitable for a broad range of decorative and functional interior and exterior applications.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibrant, lightfast colour\u003c\/strong\u003e: Contains high-quality carbon black pigment that produces dense black tones with excellent resistance to UV fading and weathering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniform dispersion\u003c\/strong\u003e: The fine powder integrates evenly within dry cement and sand mixes, ensuring complete colour consistency in the finished product.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo structural impact\u003c\/strong\u003e: When used within recommended dosage limits, it does not affect setting time, compressive strength, or long-term durability of the mix.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomisable shades\u003c\/strong\u003e: Pigment dosage can be varied from 1:20 to 1:10 by weight (pigment to cement) to achieve shades from mid-grey to deep black.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour stability\u003c\/strong\u003e: Lightfast and alkali-resistant pigments provide reliable performance in both interior and exterior conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixing accuracy\u003c\/strong\u003e: Designed to be measured by weight, ensuring reproducible colour batches for continuous or large-area applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility with additives\u003c\/strong\u003e: Can be used in conjunction with Bostik Mortar Plasticiser or Bostik Integral Waterproofer to improve workability and reduce efflorescence.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColoured concrete\u003c\/strong\u003e: Ideal for decorative paths, patios, driveways, and precast elements requiring a durable black or dark grey tone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMortars\u003c\/strong\u003e: Produces coloured jointing and pointing mortars to match or contrast with various brick types in both modern and restoration projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRenders\u003c\/strong\u003e: Suitable for achieving black or slate-toned finishes in interior or exterior wall renders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreeds\u003c\/strong\u003e: Used to create coloured floor screeds or as a base layer beneath other finishes where a dark tinted appearance is required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry mixing\u003c\/strong\u003e: Add the Black pigment directly to the dry cement and mix thoroughly before introducing sand or aggregates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniform distribution\u003c\/strong\u003e: Ensure pigment particles are evenly dispersed throughout all dry components before adding water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater addition\u003c\/strong\u003e: Introduce gauging water gradually to achieve desired workability, maintaining consistent water-to-cement ratios between batches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour testing\u003c\/strong\u003e: Always prepare a small trial mix using site materials and allow full curing to confirm colour suitability before large-scale use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistency control\u003c\/strong\u003e: Use identical cement, sand, aggregate sources, and pigment batches for all continuous applications to avoid shade variation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfflorescence reduction\u003c\/strong\u003e: For external or decorative finishes, adding Bostik Mortar Plasticiser or Bostik Integral Waterproofer can help reduce lime bloom and enhance long-term colour retention.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePigment type\u003c\/strong\u003e: High-purity, carbon black pigment designed for cementitious systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour fastness\u003c\/strong\u003e: Tested for UV and alkali resistance to ensure durable, non-fading performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance range\u003c\/strong\u003e: Suitable for both structural and decorative cement-based materials when used within recommended dosage levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMix ratio guidance\u003c\/strong\u003e: Typical use is 1 part pigment to 20 parts cement by weight for standard black tone; may increase to 1:10 for deeper tones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Always mix by weight, not volume, and conduct a full trial to verify colour accuracy. Do not exceed maximum dosage rate or mix with other colourants unless approved by the manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Bostik","offers":[{"title":"Black","offer_id":53771510087791,"sku":"6006001","price":8.04,"currency_code":"GBP","in_stock":false},{"title":"Brick Red","offer_id":53771510120559,"sku":"6006002","price":8.04,"currency_code":"GBP","in_stock":false},{"title":"Buff","offer_id":53771510153327,"sku":"6006003","price":8.04,"currency_code":"GBP","in_stock":false},{"title":"Russet Brown","offer_id":53771510186095,"sku":"6006004","price":8.04,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/bostik_cementone_colour_for_cement_black_1kg.jpg?v=1783758527","url":"https:\/\/supplyyard.co.uk\/products\/bostik-cementone-colour-for-cement-black-1kg-6-box","provider":"Supply Yard","version":"1.0","type":"link"}