{"product_id":"sikaflex-291wh-291-marine-polyurethane-adhesive-sealant-white-11-oz-cartridge-884-291wh","title":"Sikaflex 291 Marine Adhesive \/ Sealant – White, 11 oz. Cartridge (884-291WH)","description":"\u003ch2\u003eSikaflex 291 Marine Adhesive \/ Sealant – White, 11 oz. Cartridge\u003c\/h2\u003e\u003cp\u003eSikaflex 291 is a one-component, moisture-curing polyurethane adhesive and sealant built for demanding marine environments. The 11 oz. cartridge format is the standard choice for deck hardware installation, portlight sealing, and general above-waterline bonding jobs where a full tube of material is needed. It cures to a flexible, watertight seal that holds up to vibration, UV exposure, and constant moisture without cracking or shrinking.\u003c\/p\u003e\u003cp\u003eFormulated with low viscosity and medium modulus, Sikaflex 291 flows smoothly into joints and gaps, bonds to a wide range of substrates, and remains paintable after cure.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDeck hardware installation (cleats, hatches, fittings, stanchion bases)\u003c\/li\u003e\n\u003cli\u003eThrough-hull fittings and port sealing\u003c\/li\u003e\n\u003cli\u003eCabin windows and portlights\u003c\/li\u003e\n\u003cli\u003eTeak and non-skid deck seams\u003c\/li\u003e\n\u003cli\u003eGeneral above-waterline bonding and sealing\u003c\/li\u003e\n\u003cli\u003eFiberglass, wood, metal, and most painted surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne-component — no mixing required\u003c\/li\u003e\n\u003cli\u003eMoisture-activated, fast cure\u003c\/li\u003e\n\u003cli\u003eLow viscosity for smooth application and gap-filling\u003c\/li\u003e\n\u003cli\u003eMedium modulus — flexible yet strong bond\u003c\/li\u003e\n\u003cli\u003ePaintable after cure\u003c\/li\u003e\n\u003cli\u003eResistant to UV, saltwater, and fuel splash\u003c\/li\u003e\n\u003cli\u003e11 oz. (310 ml) standard cartridge — fits standard caulking guns\u003c\/li\u003e\n\u003cli\u003eSKU: 884-291WH\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelated Products\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291wh70ml-291-marine-polyurethane-adhesive-sealant-white-70-ml-mini-sausage-884-291wh70ml\"\u003eSikaflex 291 White – 70 ml Mini Sausage (single-use \/ tight-space format)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291lotwh-291-lot-marine-polyurethane-adhesive-sealant-white-11-oz-cart-884-291lotwh\"\u003eSikaflex 291 LOT White – 11 oz. Cartridge (Low Odour\/Tack formula)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291bk-291-marine-polyurethane-adhesive-sealant-black-11-oz-cartridge-884-291bk\"\u003eSikaflex 291 Black – 11 oz. Cartridge\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-292-polyurethane-10-3-oz-cartridge-white-12-case-884-292wh\"\u003eSikaflex 292 Polyurethane – White, 10.3 oz. Cartridge (structural grade)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-sik205-primer-250-ml-6-case-884-sik205\"\u003eSikaflex 205 Primer – 250 ml (for porous or difficult substrates)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe 11 oz. cartridge is the best all-around format for Sikaflex 291 — it covers most deck hardware installs, portlight reseals, and fitting jobs without running short. For single-use or precision work in tight spaces, the \u003ca href=\"\/products\/sikaflex-291wh70ml-291-marine-polyurethane-adhesive-sealant-white-70-ml-mini-sausage-884-291wh70ml\"\u003e70 ml mini sausage\u003c\/a\u003e reduces waste. If low odour during application is a priority — particularly for enclosed spaces — consider the \u003ca href=\"\/products\/sikaflex-291lotwh-291-lot-marine-polyurethane-adhesive-sealant-white-11-oz-cart-884-291lotwh\"\u003e291 LOT formula\u003c\/a\u003e. For structural bonding applications requiring higher strength, step up to \u003ca href=\"\/products\/sikaflex-292-polyurethane-10-3-oz-cartridge-white-12-case-884-292wh\"\u003eSikaflex 292\u003c\/a\u003e. Pair with \u003ca href=\"\/products\/sikaflex-sik205-primer-250-ml-6-case-884-sik205\"\u003eSikaflex 205 Primer\u003c\/a\u003e on porous or difficult substrates for maximum adhesion.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250760843300,"sku":"884-291WH","price":18.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/301-90919_e7c00a61-b9f3-4b39-b048-5ba30807da46.jpg?v=1786509718","url":"https:\/\/marisolmarine.com\/products\/sikaflex-291wh-291-marine-polyurethane-adhesive-sealant-white-11-oz-cartridge-884-291wh","provider":"Marisol Marine Company","version":"1.0","type":"link"}