{"product_id":"sikaflex-291gr-marine-polyurethane-adhesive-sealant-grey-11-oz-cartridge","title":"Sikaflex 291GR Marine Polyurethane Adhesive \/ Sealant – Grey, 11 oz. Cartridge","description":"\u003ch2\u003eSikaflex 291GR – Marine Polyurethane Adhesive \u0026amp; Sealant, Grey\u003c\/h2\u003e\u003cp\u003eSikaflex 291GR is a one-component, moisture-curing polyurethane adhesive and sealant built for the demands of the marine environment. Its low-viscosity formula flows readily into joints and irregular surfaces, curing to a durable, flexible, waterproof seal that holds up against UV exposure, saltwater, and constant vibration. The grey colour integrates cleanly with aluminum, stainless steel, and painted deck surfaces where white or black would stand out.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne-component — no mixing, ready to apply\u003c\/li\u003e\n\u003cli\u003eFast cure, medium modulus — flexible bond that moves with the boat\u003c\/li\u003e\n\u003cli\u003eLow viscosity — penetrates tight joints and uneven surfaces\u003c\/li\u003e\n\u003cli\u003eExcellent adhesion to fibreglass, wood, metals, and most plastics\u003c\/li\u003e\n\u003cli\u003eResistant to UV, saltwater, fuel splash, and weathering\u003c\/li\u003e\n\u003cli\u003ePaintable after full cure\u003c\/li\u003e\n\u003cli\u003eGrey colour — blends with aluminum fittings and grey deck surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDeck hardware bedding (cleats, fairleads, stanchion bases, pad eyes)\u003c\/li\u003e\n\u003cli\u003eThrough-hull fittings and port lights\u003c\/li\u003e\n\u003cli\u003eHatches, portlights, and windshield frames\u003c\/li\u003e\n\u003cli\u003eGeneral above-waterline sealing and bonding\u003c\/li\u003e\n\u003cli\u003eAluminum and stainless steel fittings on fibreglass hulls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe grey variant is the right call when colour match matters — particularly for installations on grey or silver-toned decks, aluminum toe rails, and stainless hardware. Boaters bedding stanchion bases, cleats, or windshield frames on fibreglass consistently choose grey to avoid the visual contrast of white or black sealant against bare metal. For UV-critical glazing or window bonding, step up to \u003ca href=\"\/products\/sikaflex-295uv-marine-window-adhesive-white-11-oz-cartridge-295uvwh\"\u003eSikaflex 295UV\u003c\/a\u003e. Need the same formula in a different colour? See \u003ca href=\"\/products\/sikaflex-291bk-291-marine-polyurethane-adhesive-sealant-black-11-oz-cartridge\"\u003eSikaflex 291BK (Black)\u003c\/a\u003e or \u003ca href=\"\/products\/sikaflex-291-marine-adhesive-sealant-white-11-oz-cartridge-884-291wh\"\u003eSikaflex 291WH (White)\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eRelated Products\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291bk-291-marine-polyurethane-adhesive-sealant-black-11-oz-cartridge\"\u003eSikaflex 291BK – Black, 11 oz. Cartridge\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291-marine-adhesive-sealant-white-11-oz-cartridge-884-291wh\"\u003eSikaflex 291WH – White, 11 oz. Cartridge\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291bk70ml-291-marine-polyurethane-adhesive-sealant-black-70-ml-mini-sausage\"\u003eSikaflex 291BK – Black, 70 ml Mini Sausage\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291-marine-adhesive-sealant-white-70-ml-mini-sausage-884-291wh70ml\"\u003eSikaflex 291WH – White, 70 ml Mini Sausage\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-295uv-marine-window-adhesive-white-11-oz-cartridge-295uvwh\"\u003eSikaflex 295UV – Marine Window Adhesive, White, 11 oz.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250760744996,"sku":"884-291GR","price":18.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/301-90919_c525f7be-043f-430d-99dd-00088e9afd2e.jpg?v=1786509715","url":"https:\/\/marisolmarine.com\/products\/sikaflex-291gr-marine-polyurethane-adhesive-sealant-grey-11-oz-cartridge","provider":"Marisol Marine Company","version":"1.0","type":"link"}