{"product_id":"everbuild-black-jack-bitumen-flashing-primer-1l","title":"Everbuild Black Jack Bitumen \u0026 Flashing Primer 1L","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eEverbuild Black Jack Bitumen \u0026amp; Flashing Primer in a 1 litre tin is a thin black primer formulated to provide a strong key for subsequent bituminous coatings, paints and flashing tapes. Designed for roofing and general building substrates, it enhances adhesion and supports the performance of applied bitumen layers in both waterproofing and refurbishment works.\u003cbr\u003e\u003cbr\u003eIt is suitable for use on concrete, cementitious screeds, renders, bitumen felt, asphalt, mastic, timber and weathered metal surfaces, enabling a consistent preparation layer across varied roof and structural surfaces. The product forms a controlled film on metal and penetrates deeply into porous substrates, supporting even application and predictable bonding behaviour.\u003cbr\u003e\u003cbr\u003eBrush or spray applied, the primer dries rapidly in favourable weather conditions and provides a clean, receptive base for bituminous paints, roof coatings and flashing membranes. The formulation adheres effectively to porous and non-porous substrates, with higher saturation achievable on fibre cement or rag felt where the surface requires deeper penetration.\u003cbr\u003e\u003cbr\u003eSuitable for routine roof preparation and detail work, the 1 litre size offers convenient coverage for smaller priming tasks and repair areas before applying compatible bitumen-based systems.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast drying\u003c\/strong\u003e: Forms a receptive surface within 3–6 hours depending on weather conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepares surfaces for bituminous products\u003c\/strong\u003e: Improves adhesion for bitumen paints, coatings and flashing tapes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with multiple substrates\u003c\/strong\u003e: Suitable for concrete, asphalt, felt, wood and weathered metals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControlled film formation\u003c\/strong\u003e: Provides 0.1mm wet and 0.05mm dry film thickness at 11m²\/L for uniform priming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush or spray application\u003c\/strong\u003e: Allows flexible use on small or detailed roof and building surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer size: \u003c\/strong\u003e1 litre is ideal for localised priming, detailing work and small roof preparation tasks.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof surface priming\u003c\/strong\u003e: Prepares concrete, cementitious screeds and renders for bituminous coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBituminous membrane preparation\u003c\/strong\u003e: Suitable for use on bitumen felt, asphalt and mastic surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimber and metal priming\u003c\/strong\u003e: Used on wood and weathered corrugated metal to enhance coating adhesion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlashing tape preparation\u003c\/strong\u003e: Acts as a bonding primer before applying Black Jack Flashing Tape.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface preparation\u003c\/strong\u003e: Ensure all areas are dry, stable and cleaned free from dust, dirt, grease and loose material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal conditioning\u003c\/strong\u003e: Remove rust by wire brushing and prime separately with a rust-inhibitive primer where needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication method\u003c\/strong\u003e: Stir thoroughly and apply by brush or spray, scrubbing in to achieve an even, thin coat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorous surfaces\u003c\/strong\u003e: Apply generously to saturate fibre cement or rag felt where deeper penetration is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrying interval\u003c\/strong\u003e: Allow 3–6 hours drying time, ensuring the solvent has fully evaporated (tack-free) to prevent degradation of tape adhesives before overcoating with bituminous paints or flashing membranes\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage \u0026amp; Shelf Life: \u003c\/strong\u003e24 months from date of manufacture in original, unopened containers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical base\u003c\/strong\u003e: White spirit solvent system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical resistance\u003c\/strong\u003e: Resistant to dilute acids, alkalis, salt solutions and water; not resistant to oils or solvents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService temperature\u003c\/strong\u003e: −20°C to +50°C (must be overcoated).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYield\u003c\/strong\u003e: 4–6m² per litre depending on porosity; up to 11m²\/L on non-porous surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Flammable solvent content; avoid vapour inhalation, ensure adequate drying time, and do not use over rusting metal without prior rust-inhibitive treatment.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Everbuild","offers":[{"title":"Default Title","offer_id":53771556225135,"sku":"9002166","price":11.28,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Everbuild_Black_Jack_Bitumen_Flashing_Primer_1L.jpg?v=1783758805","url":"https:\/\/supplyyard.co.uk\/products\/everbuild-black-jack-bitumen-flashing-primer-1l","provider":"Supply Yard","version":"1.0","type":"link"}