{"product_id":"everbuild-ac50-trade-acoustic-sealant-adhesive-900ml","title":"Everbuild AC50 Trade Acoustic Sealant \u0026 Adhesive 900ml","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eEverbuild AC50 Trade Acoustic Sealant \u0026amp; Adhesive in a 900ml cartridge is a high-strength, permanently flexible acoustic compound formulated for professional sealing and bonding applications. \u003cbr\u003e\u003cbr\u003eDesigned for use in dry lining, plasterboard installation, and insulation systems, it provides an effective acoustic barrier that minimises sound transmission through joints, gaps, and voids. \u003cbr\u003e\u003cbr\u003eThe formulation offers strong initial grab with excellent adhesion to plasterboard, timber, metal studding, and blockwork. \u003cbr\u003e\u003cbr\u003eOnce cured, it remains flexible to accommodate low to medium movement without cracking or loss of adhesion. The sealant’s white finish allows for direct overpainting once fully cured, combining functionality and a clean, professional appearance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh strength and flexibility\u003c\/strong\u003e: Forms a durable, permanently elastic joint resistant to cracking or movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual performance\u003c\/strong\u003e: Functions effectively as both a sealant and adhesive, simplifying on-site installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent adhesion\u003c\/strong\u003e: Bonds securely to plasterboard, wood, metal studding, and masonry without primer on most substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic performance\u003c\/strong\u003e: Provides a reliable sound barrier for walls, floors, and ceilings in partition systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMould resistant\u003c\/strong\u003e: Resists biological growth in humid or internal environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-flammable\u003c\/strong\u003e: Safe for use in a wide range of construction and finishing applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverpaintable surface\u003c\/strong\u003e: Accepts most conventional paints after full cure for seamless finishing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy cleanup\u003c\/strong\u003e: Can be cleaned from tools and surfaces with water before curing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize 900ml\u003c\/strong\u003e: Supplied in a large-volume cartridge suitable for high-coverage professional use.\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\u003eDrylining and partitioning\u003c\/strong\u003e: Seals perimeter and abutment gaps in plasterboard systems to enhance acoustic insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard bonding\u003c\/strong\u003e: Fixes plasterboard to blockwork, studding, and other common substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation installation\u003c\/strong\u003e: Bonds kraft-lined and other insulation boards where acoustic and adhesive performance are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeiling and floor joints\u003c\/strong\u003e: Seals junctions between boards and other building elements to reduce sound transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral interior sealing\u003c\/strong\u003e: Suitable for most internal gaps where flexibility and adhesion are needed.\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\u003eSurface preparation\u003c\/strong\u003e: Ensure all surfaces are clean, dry, and free from dust, oil, or loose coatings. Prime new plaster or porous surfaces with diluted Everbuild PVA Bond (1:4 with water).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication method\u003c\/strong\u003e: Insert 900ml cartridge into a 1-litre mastic gun, cut the nozzle to size, and puncture the seal before use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs a sealant\u003c\/strong\u003e: Apply to joints slightly overfilled, smooth with a caulking tool or filler knife, and clean excess with a damp cloth within 30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs an adhesive (large areas)\u003c\/strong\u003e: Apply a 9–10mm bead at 250–350mm centres, press the board into place, and provide temporary support until cured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs an adhesive (studding)\u003c\/strong\u003e: Apply a continuous bead to studding, position boards immediately, and support until cured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCuring conditions\u003c\/strong\u003e: Allow 1–5 days to cure depending on thickness, temperature, and humidity. Avoid application below +5°C.\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\u003eStandards compliance\u003c\/strong\u003e: Independently tested to BS EN ISO 140\/3, EN15651-1:2012, and EN13963:2005 for acoustic and sealing performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: Shore A approximately 40, providing balanced elasticity and surface integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElongation at break\u003c\/strong\u003e: 100–200% for movement capability up to ±5%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDensity\u003c\/strong\u003e: 1.55–1.65 g\/cm³, ensuring high body and minimal slump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal resistance\u003c\/strong\u003e: Performs between -15°C and +70°C once cured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical resistance\u003c\/strong\u003e: Fair resistance to dilute acids, alkalis, and aliphatic hydrocarbons; poor resistance to aromatics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage life\u003c\/strong\u003e: 12 months in unopened condition when stored cool and frost-free at 5–25°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Not suitable for use against bituminous materials. Cure time may extend significantly in damp or cold conditions; always ensure adequate ventilation and mechanical support during curing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Everbuild","offers":[{"title":"Default Title","offer_id":53771414339695,"sku":"1003112","price":8.7,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Everbuild_AC50_Trade_Acoustic_Sealant_and_Adhesive_900ml_-_Photo.jpg?v=1783758342","url":"https:\/\/supplyyard.co.uk\/products\/everbuild-ac50-trade-acoustic-sealant-adhesive-900ml","provider":"Supply Yard","version":"1.0","type":"link"}