{"product_id":"mapei-silcon-mastic","title":"Mapei Mapesil AC Zero Flexible Silicone Sealant for Fire Hearth Expansion Joints – 310ml","description":"\u003csection style=\"line-height: 1.5;\" class=\"product-page\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 16px;\"\u003eMapei Mapesil AC Zero Flexible Silicone Sealant for Fire Hearth Expansion Joints – 310ml\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003eMapei Mapesil AC Zero is a high-performance flexible silicone sealant ideal for creating a neat expansion joint at the back of a compatible fire hearth where the hearth meets the wall. Rather than filling this gap with a rigid material, Mapesil AC remains flexible to help accommodate movement between the hearth and the surrounding structure.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003eIt is particularly useful when installing slate hearths, where a small perimeter gap is left between the back of the hearth and the wall. The silicone is applied into this gap and tooled to a smooth, low-profile finish level with the surface of the hearth, creating a clean and professional finishing detail.\u003c\/p\u003e\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eIdeal for the Expansion Gap Behind Your Hearth\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003eMapesil AC Zero provides a flexible alternative to filling the perimeter joint with a rigid grout or mortar. Once applied and correctly tooled, it creates a discreet flexible joint between the hearth and wall while allowing for natural movement. This helps give the installation a much cleaner finished appearance.\u003c\/p\u003e\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eMain Benefits\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Ideal for filling the expansion gap where a compatible hearth meets the wall\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Creates a neat, low-profile finish level with the hearth\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Flexible sealant accommodates movement of up to 25%\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Helps avoid using a rigid filler in the expansion joint\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Excellent elasticity for movement joints\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Waterproof once correctly cured\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Mould resistant\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Temperature resistant from -40°C to +180°C\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Easy cartridge application\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e✓ Available in four useful hearth and interior colours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eHow to Use Around a Hearth\u003c\/h2\u003e\n\u003col style=\"margin-top: 0; margin-bottom: 20px; padding-left: 22px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003ePrepare – ensure the hearth edge and adjoining surface are clean, dry and free from dust, grease and loose material.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eMask – masking tape can be applied along both sides of the joint to help achieve a neat finish.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eApply – apply a smooth, continuous bead of Mapesil AC into the expansion gap between the hearth and wall.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eFinish – tool the silicone down neatly so the finished joint is low profile and level with the hearth surface, then remove masking tape before the sealant skins.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eAvailable Colours\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Black 120 – Ideal for Black Granite and Limestone \u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Anthracite 114 – Ideal for Black Slate \u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Cement Grey 113 – Ideal for Grey Sandstone and Slate\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• White 100 – Ideal where the joint needs to complement a white or light-coloured wall\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"margin-top: 28px; margin-bottom: 12px;\"\u003eProduct Details\u003c\/h2\u003e\n\u003cul style=\"margin-top: 0; margin-bottom: 10px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Manufacturer: Mapei\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Product: Mapesil AC Zero\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Product Type: Acetic silicone sealant\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Pack Size: 310ml cartridge\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Movement Capability: Up to 25%\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Temperature Resistance: -40°C to +180°C\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Waterproof: Yes, once correctly cured\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Mould Resistant: Yes\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e• Application: Flexible perimeter and movement joints on compatible materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003cp\u003e==specification-part==\u003c\/p\u003e\n\u003cstyle\u003e\n  .product-spec {\n    max-width: 1080px;\n    margin: 0 auto;\n    background: #ffffff;\n    border: 1px solid var(--border, #ddd);\n    font-size: 0.9rem;\n  }\n\n  .spec-table {\n    width: 100%;\n    border-collapse: collapse;\n  }\n\n  .spec-table th,\n  .spec-table td {\n    border: 1px solid var(--border, #ddd);\n    padding: 8px 14px;\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .spec-table .spec-main-header th {\n    background: #f2f2f2;\n    text-transform: uppercase;\n    letter-spacing: 0.08em;\n    font-size: 0.78rem;\n    font-weight: 600;\n    color: var(--accent, #666);\n  }\n\n  .spec-table .spec-section-header th {\n    background: #e7e7e7;\n    text-transform: uppercase;\n    letter-spacing: 0.08em;\n    font-size: 0.78rem;\n    font-weight: 600;\n    color: var(--accent, #666);\n  }\n\n  .spec-label {\n    width: 32%;\n    background: #fafafa;\n    font-weight: 600;\n    white-space: nowrap;\n  }\n\n  .spec-value {\n    background: #ffffff;\n    font-weight: 400;\n  }\n\n  .spec-note {\n    display: block;\n    margin-top: 4px;\n    font-size: 0.8rem;\n    color: var(--accent, #777);\n    font-weight: 400;\n  }\n\n  .footer-note {\n    padding: 10px 14px;\n    font-size: 0.78rem;\n    color: var(--accent, #777);\n    font-weight: 400;\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"product-spec\"\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"spec-main-header\"\u003e\n\u003cth colspan=\"2\"\u003eProduct Specifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eGeneral\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eMapei\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eProduct\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eMapesil AC Zero\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eProduct Type\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eOne-Component Acetic Silicone Sealant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003ePack Size\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e310ml Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eColours Stocked\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eBlack 120, Anthracite 114, Cement Grey 113 \u0026amp; White 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003ePerformance\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eMovement Capability\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eUp to 25%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eTemperature Resistance\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e-40°C to +180°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eWater Resistance\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eWaterproof once correctly cured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eMould Resistance\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eElasticity\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eHighly elastic flexible seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eFire Hearth Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003ePrimary Use\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eCreating a flexible expansion joint at the back or perimeter of a compatible fire hearth where it meets the wall or adjoining finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eSlate Hearths\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eCheck compatibility with the particular slate and installation before use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eJoint Finish\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eTool to a neat, low-profile finish level with the hearth surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eMovement Joint\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable for compatible movement and perimeter joints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eApplication Method\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eApply using a suitable silicone sealant gun and tool immediately after application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eSurface Preparation\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSurfaces must be clean, dry, sound and free from dust, grease, oils and loose material.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eMasking\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eMasking tape may be used along the edges of the joint to achieve a cleaner finished line.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eApplication\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eApply a continuous bead into the prepared joint, ensuring sufficient contact with the sides of the joint.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eFinishing\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eTool the silicone immediately after application to produce a smooth, low-profile joint that finishes neatly with the hearth surface.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eMaterial Compatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eCeramic\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eGlass\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eAnodised Aluminium\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eSuitable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eNatural Stone\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eCompatibility must be checked before use \u003cspan class=\"spec-note\"\u003eMapesil AC is an acetic silicone and should not be used on acid-sensitive natural stone such as limestone. For porous or sensitive natural stone, a suitable neutral-cure Mapei silicone may be more appropriate.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eColour Options\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eBlack\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eAnthracite\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eCement Grey\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e113\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eWhite\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"spec-section-header\"\u003e\n\u003cth colspan=\"2\"\u003eManufacturer Information\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eMapei\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eProduct Range\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eMapesil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"spec-label\"\u003eManufacturer Guidance\u003c\/th\u003e\n\u003ctd class=\"spec-value\"\u003eAlways refer to the latest Mapei technical and safety documentation and confirm compatibility with the hearth material, wall finish and intended joint before application.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"footer-note\"\u003eMapesil AC Zero is an acetic-cure silicone and is not universally suitable for every natural stone. Always confirm compatibility with the specific hearth material before application. The silicone should be used as a flexible jointing\/sealing material and should not be relied upon as a structural adhesive for fixing the hearth.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Primethorpe Paving","offers":[{"title":"Flexible Silicone Sealant - Black","offer_id":52949794029797,"sku":"SILBLACK*","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"Flexible Silicone Sealant - Anthracite","offer_id":52949794062565,"sku":"SILANT*","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"Flexible Silicone Sealant - Grey","offer_id":52949794095333,"sku":"SILGREY*","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"Flexible Silicone Sealant - White","offer_id":52949794128101,"sku":"SILWHITE*","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"Applicator Gun","offer_id":52949793997029,"sku":"APPGUN*","price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/7849\/7509\/files\/28161.jpg?v=1790339646","url":"https:\/\/primethorpepaving.co.uk\/products\/mapei-silcon-mastic","provider":"Primethorpe Paving","version":"1.0","type":"link"}