{"product_id":"sudbury-300-marine-sealant-white-10-oz-cartridge","title":"Sudbury 300 Marine Sealant – White, 10 oz. Cartridge","description":"\u003ch2\u003eSudbury 300 – Marine Sealant, White, 10 oz. Cartridge\u003c\/h2\u003e\u003cp\u003eSudbury 300 is a one-component marine sealant with fast skinning (approximately 10 minutes) and a full cure time of 1–7 days. It delivers superior strength, adhesion, and elongation across a wide temperature range, making it suitable for both above- and below-waterline applications. The white colour suits hull seams, deck hardware, and white-painted surfaces where a clean, finished appearance matters.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne-component — no mixing required\u003c\/li\u003e\n\u003cli\u003eFast skinning: approximately 10 minutes\u003c\/li\u003e\n\u003cli\u003eFull cure: 1–7 days\u003c\/li\u003e\n\u003cli\u003eCures in temperatures from -20°F to +120°F (-29°C to +49°C)\u003c\/li\u003e\n\u003cli\u003eExcellent flexibility, compression, and elongation\u003c\/li\u003e\n\u003cli\u003eSuitable for above- and below-waterline applications\u003c\/li\u003e\n\u003cli\u003eWet-sandable and paintable after cure\u003c\/li\u003e\n\u003cli\u003eAdheres to fibreglass, wood, metal, glass, Plexiglas, Lexan, and most plastics\u003c\/li\u003e\n\u003cli\u003eClean up with mineral spirits\u003c\/li\u003e\n\u003cli\u003eNot recommended for wood deck seams\u003c\/li\u003e\n\u003cli\u003eWhite colour — suits hull seams and white deck surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHull seams and below-waterline sealing\u003c\/li\u003e\n\u003cli\u003eDeck hardware bedding on white or light-coloured surfaces\u003c\/li\u003e\n\u003cli\u003eThrough-hull fittings and port lights\u003c\/li\u003e\n\u003cli\u003eFibreglass, wood, and metal joint sealing\u003c\/li\u003e\n\u003cli\u003eGlass and Lexan\/Plexiglas bonding and sealing\u003c\/li\u003e\n\u003cli\u003eGeneral above- and below-waterline maintenance sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe Sudbury 300 is a versatile, heavy-duty sealant that works above and below the waterline — a broader range than many polyurethane sealants that are rated above-waterline only. The wide cure temperature range makes it a practical choice for cold-weather maintenance work. If you need the same formula in a different colour, the \u003ca href=\"\/products\/sudbury-302-sealant-10-oz-cartridge-black\"\u003eSudbury 302 (Black, 10 oz.)\u003c\/a\u003e and \u003ca href=\"\/products\/sudbury-301-sealant-10-oz-cartridge-clear\"\u003eSudbury 301 (Clear, 10 oz.)\u003c\/a\u003e are the cartridge siblings. For smaller tube-format jobs, the \u003ca href=\"\/products\/sudbury-320-sealant-3-oz-tube-white\"\u003eSudbury 320 (White, 3 oz. tube)\u003c\/a\u003e, \u003ca href=\"\/products\/sudbury-322-sealant-3-oz-tube-black\"\u003eSudbury 322 (Black, 3 oz. tube)\u003c\/a\u003e, and \u003ca href=\"\/products\/sudbury-321x-sealant-3-oz-tube-clear\"\u003eSudbury 321X (Clear, 3 oz. tube)\u003c\/a\u003e are available. Note: not recommended for wood deck seams.\u003c\/p\u003e\u003ch3\u003eRelated Products\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sudbury-302-sealant-10-oz-cartridge-black\"\u003eSudbury 302 – Black, 10 oz. Cartridge\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sudbury-301-sealant-10-oz-cartridge-clear\"\u003eSudbury 301 – Clear, 10 oz. Cartridge\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sudbury-320-sealant-3-oz-tube-white\"\u003eSudbury 320 – White, 3 oz. Tube\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sudbury-322-sealant-3-oz-tube-black\"\u003eSudbury 322 – Black, 3 oz. Tube\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sudbury-321x-sealant-3-oz-tube-clear\"\u003eSudbury 321X – Clear, 3 oz. Tube\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291bk-marine-polyurethane-adhesive-sealant-black-11-oz-cartridge\"\u003eSikaflex 291BK – Black Marine Sealant, 11 oz.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sikaflex-291gr-marine-polyurethane-adhesive-sealant-grey-11-oz-cartridge\"\u003eSikaflex 291GR – Grey Marine Sealant, 11 oz.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250760646692,"sku":"829-300","price":46.41,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/829-301_61d7009a-8d61-417c-999b-e7bf1fd5e7c0.jpg?v=1786509712","url":"https:\/\/marisolmarine.com\/products\/sudbury-300-marine-sealant-white-10-oz-cartridge","provider":"Marisol Marine Company","version":"1.0","type":"link"}