{"product_id":"sikaflex-291-lot-marine-sealant-white-300ml-sik-291lotwht-300","title":"Sikaflex-291 LOT Marine Sealant – White, 300mL Cartridge | SIK-291LOTWHT-300","description":"\u003ch2\u003eSikaflex-291 LOT Marine Sealant – White, 300mL Cartridge\u003c\/h2\u003e\u003cp\u003eA trusted one-component polyurethane sealant built for the demands of the marine environment. Sikaflex-291 LOT bonds and seals in a single application — curing to a tough, permanently flexible seal that moves with the boat without cracking or losing adhesion. The white colour blends cleanly with white gelcoat, deck hardware, and trim for a professional finish.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne-component polyurethane — no mixing required, ready to apply from the cartridge\u003c\/li\u003e\n\u003cli\u003ePermanently flexible cure — accommodates hull and deck movement without cracking\u003c\/li\u003e\n\u003cli\u003eExcellent adhesion to fibreglass, GRP, wood, aluminium, and most plastics\u003c\/li\u003e\n\u003cli\u003eWaterproof and UV-resistant once cured\u003c\/li\u003e\n\u003cli\u003eWhite colour — ideal for white gelcoat decks and hardware\u003c\/li\u003e\n\u003cli\u003e300mL cartridge — fits standard caulking guns\u003c\/li\u003e\n\u003cli\u003ePaintable after full cure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e Sikaflex-291 LOT is the go-to sealant for above-waterline deck fitting installations — cleats, stanchion bases, hatches, port lights, and through-deck fittings where a flexible, watertight seal is needed. The LOT (Low Odour Technology) formulation makes it more comfortable to work with in enclosed spaces like cabins and lockers. It bonds well to fibreglass and aluminium, making it suitable for most production boat hardware installs. For black hardware or a less visible bead, see the \u003ca href=\"\/products\/8131648520228\"\u003eSikaflex-291 Black 300mL Cartridge\u003c\/a\u003e. For UV-critical above-deck applications, consider the \u003ca href=\"\/products\/8131392143396\"\u003eSikaflex UV Resistant Sealant\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e SIK-291LOTWHT-300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemistry:\u003c\/strong\u003e One-component polyurethane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 300mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Cartridge (fits standard caulking gun)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCure type:\u003c\/strong\u003e Moisture-curing, permanently flexible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Above-waterline deck fittings, hatches, port lights, stanchion bases, trim\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564270092324,"sku":"SIK-291LOTWHT-300","price":24.15,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/0ad77384-7935-42c8-a66f-b3aaa1c5c6f8.png?v=1784863492","url":"https:\/\/marisolmarine.com\/products\/sikaflex-291-lot-marine-sealant-white-300ml-sik-291lotwht-300","provider":"Marisol Marine Company","version":"1.0","type":"link"}