{"product_id":"willseal-backer-roll","title":"Tremco Willseal Backer Roll — Secondary Seal and Backer","description":"\u003cstyle\u003e.product-info buy-buttons,.product-info price-list,.product-info shopify-payment-terms,.product-info quantity-selector,.product-info .quantity-selector{display:none !important;}\u003c\/style\u003e\u003cdiv style=\"background:#1C4F8A;border:1px solid #14263F;border-radius:6px;padding:14px 18px;margin:0 0 18px 0;\"\u003e\n\u003cp style=\"margin:0;font-size:1.02em;color:#ffffff;\"\u003e\u003cstrong\u003e📐 Project-Quoted Product — North Vancouver, BC.\u003c\/strong\u003e Expansion joint systems are sized to your joint width, depth and run length and priced per project. Send us your joint schedule and we confirm pricing and lead time within one business day. Call \u003ca href=\"tel:2502333000\" style=\"color:#ffffff;font-weight:bold;text-decoration:underline;\"\u003e250-233-3000\u003c\/a\u003e or \u003ca href=\"\/pages\/request-a-quote\" style=\"color:#ffffff;font-weight:bold;text-decoration:underline;\"\u003erequest a project quote\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"margin:12px 0 0;\"\u003e\u003ca href=\"\/pages\/request-a-quote\" style=\"display:inline-block;background:#D6A52A;color:#14263F;font-weight:bold;text-transform:uppercase;letter-spacing:.05em;padding:12px 26px;border-radius:4px;text-decoration:none;\"\u003eRequest a Project Quote\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color:#1C4F8A;margin-top:0;\"\u003eTremco Willseal Backer Roll — Secondary Seal and Backer\u003c\/h2\u003e\n\u003cp style=\"font-size:1.08em;color:#333;\"\u003e\u003cstrong\u003ePre-compressed foam secondary seal and backer foundation behind wet-applied sealants\u003c\/strong\u003e | Brand: Tremco (Willseal) | Model: Willseal Backer Roll\u003c\/p\u003e\n\u003cp style=\"font-size:1.02em;color:#444;\"\u003eWillseal Backer Roll is a pre-compressed, flame-retardant-impregnated polyurethane foam with a pressure-sensitive adhesive on one side, used as a flexible secondary seal and backer rod foundation behind wet-applied sealants in gaps from 1\/8 in. It is vapour-permeable, supplied in black, and installation depth can be adjusted to raise the R-value of the joint. Browse the full \u003ca href=\"\/collections\/trem\" style=\"color:#1C4F8A;\"\u003eTremco range\u003c\/a\u003e at Canopus Supply.\u003c\/p\u003e\n\u003cdiv style=\"border-left:4px solid #1C4F8A;background:#eef4fa;padding:14px 18px;margin:18px 0;border-radius:4px;\"\u003e\n\u003cstrong style=\"color:#1C4F8A;\"\u003eProfessional note:\u003c\/strong\u003e Compatible with silicone, polyurethane, polysulfide and acrylic sealants. Supplied in rolls for joint sizes from 1\/8 in. to 2 in. and in sticks for joint sizes from 2.25 in. to 8 in.\u003c\/div\u003e\n\u003ch2 style=\"color:#1C4F8A;\"\u003ePerformance Highlights\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:8px 0;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#eef4fa;\"\u003e\n\u003ctd style=\"border:1px solid #c9d6e5;padding:10px;\"\u003e\n\u003cstrong\u003eElongation\u003c\/strong\u003e\u003cbr\u003e120% ±20%\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #c9d6e5;padding:10px;\"\u003e\n\u003cstrong\u003eCompression Set\u003c\/strong\u003e\u003cbr\u003e4.2% max\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #c9d6e5;padding:10px;\"\u003e\n\u003cstrong\u003eFire Performance\u003c\/strong\u003e\u003cbr\u003eASTM E84 Class A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#eef4fa;\"\u003e\n\u003ctd style=\"border:1px solid #c9d6e5;padding:10px;\"\u003e\n\u003cstrong\u003eWater Penetration\u003c\/strong\u003e\u003cbr\u003ePass — ASTM E331 \/ E547\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #c9d6e5;padding:10px;\"\u003e\n\u003cstrong\u003eService Temperature\u003c\/strong\u003e\u003cbr\u003e−40 °F to 248 °F (short term)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #c9d6e5;padding:10px;\"\u003e\n\u003cstrong\u003eColour\u003c\/strong\u003e\u003cbr\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2 style=\"color:#1C4F8A;\"\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSecondary joints behind wet-applied sealants\u003c\/li\u003e\n\u003cli\u003ePrecast, masonry and brick facades\u003c\/li\u003e\n\u003cli\u003eEIFS joints\u003c\/li\u003e\n\u003cli\u003eWindow and flashing applications\u003c\/li\u003e\n\u003cli\u003eInterior vapour, dust and acoustic control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color:#1C4F8A;\"\u003eLimitations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNot for joints where standing or ponding water occurs; confirm against the current TDS.\u003c\/li\u003e\n\u003cli\u003eNot for below-grade applications; confirm against the current TDS.\u003c\/li\u003e\n\u003cli\u003eAvoid contact with hydrocarbon solvents; confirm against the current TDS.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color:#1C4F8A;\"\u003eHealth \u0026amp; Safety\u003c\/h2\u003e\n\u003cp\u003eA GHS-aligned Safety Data Sheet is available for Willseal Backer Roll. Refer to the manufacturer's Safety Data Sheet for complete information.\u003c\/p\u003e\n\u003cdiv style=\"border-left:4px solid #1C4F8A;background:#eef4fa;padding:12px 18px;margin:16px 0;border-radius:4px;\"\u003e\n\u003cstrong\u003ePurchasing Note:\u003c\/strong\u003e All sales are intended for professional and trade purchasers. Expansion joint products are ordered to project-specific sizes — confirm joint width, depth, movement class, quantity and delivery requirements when requesting your quote. Product use and installation are the responsibility of the purchaser and installer.\u003c\/div\u003e\n\u003cdiv style=\"border-left:4px solid #1C4F8A;background:#eef4fa;padding:12px 18px;margin:16px 0;border-radius:4px;\"\u003e\u003cspan style=\"color:#444;\"\u003eSizing an expansion joint? \u003ca href=\"\/pages\/contact-us\" style=\"color:#1C4F8A;font-weight:bold;\"\u003eContact Canopus Supply\u003c\/a\u003e — \u003ca href=\"tel:2502333000\" style=\"color:#1C4F8A;\"\u003e250-233-3000\u003c\/a\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003cp style=\"font-size:0.9em;color:#555;\"\u003e\u003cstrong style=\"color:#1C4F8A;\"\u003eTremco\u003c\/strong\u003e — Professional Sealants \u0026amp; Waterproofing Systems\u003c\/p\u003e\n\u003cp style=\"font-size:0.85em;color:#777;\"\u003e\u003cem\u003eTechnical information is provided for professional reference only. Product selection, joint sizing, substrate preparation, application and final performance remain the responsibility of the purchaser, installer and project specifier. Always confirm against the current TDS, SDS, project specification and site conditions before use.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:0.85em;color:#777;\"\u003e\u003cem\u003eAvailable at Canopus Supply — North Vancouver, BC. Authorized distributor in British Columbia.\u003c\/em\u003e\u003c\/p\u003e","brand":"Tremco","offers":[{"title":"Default Title","offer_id":52134368641244,"sku":"WILLSEAL-BACKER-ROLL","price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/9483\/8195\/files\/unnamed_ee64b419-8bad-491f-b764-1ff42e5ffdad.jpg?v=1785367227","url":"https:\/\/www.canopussupply.com\/products\/willseal-backer-roll","provider":"Canopus Supply Inc","version":"1.0","type":"link"}