{"product_id":"sudbury-302-marine-sealant-10-oz-cartridge-black","title":"Sudbury 302 Marine Sealant – 10 oz. Cartridge, Black","description":"\u003ch2\u003eSudbury 302 Marine Sealant – 10 oz. Cartridge, Black\u003c\/h2\u003e\u003cp\u003eSudbury 302 is a single-component, fast-skinning marine sealant in a standard 10 oz. caulk cartridge — built for larger sealing jobs where a tube isn’t enough. It skins in approximately 10 minutes and reaches full cure in 1–7 days, delivering a flexible, watertight black bond that holds up in demanding above- and below-waterline environments. The black finish makes it the right choice for dark hulls, black hardware, and any application where a clean, color-matched bead matters.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFast skin time: approximately 10 minutes\u003c\/li\u003e\n\u003cli\u003eFull cure: 1–7 days depending on temperature and humidity\u003c\/li\u003e\n\u003cli\u003eCures in temperatures from −29°C to +49°C (−20°F to +120°F)\u003c\/li\u003e\n\u003cli\u003eBlack finish — ideal for dark hulls and black hardware\u003c\/li\u003e\n\u003cli\u003eSuperior flexibility, elongation, and compression resistance\u003c\/li\u003e\n\u003cli\u003eExcellent adhesion to fiberglass, wood, metal, glass, Plexiglas, Lexan, and most plastics\u003c\/li\u003e\n\u003cli\u003eCan be wet-sanded or painted after full cure\u003c\/li\u003e\n\u003cli\u003eStandard 10 oz. cartridge — fits any standard caulk gun\u003c\/li\u003e\n\u003cli\u003eCleanup with mineral spirits\u003c\/li\u003e\n\u003cli\u003eNot recommended for wood deck seams\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHull-to-deck joints and long continuous sealing runs on dark hulls\u003c\/li\u003e\n\u003cli\u003eThrough-hull fittings and keel bolt seals\u003c\/li\u003e\n\u003cli\u003eRubrail, fendering, and trim installation on black or dark-finish boats\u003c\/li\u003e\n\u003cli\u003eBelow-waterline sealing on fiberglass and metal hulls\u003c\/li\u003e\n\u003cli\u003ePortlights, hatches, and hardware bedding where a black bead is preferred\u003c\/li\u003e\n\u003cli\u003eAny large-area sealing project requiring a flexible, permanent black bond\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe 302 is the high-volume black sealant in the Sudbury lineup — best suited for continuous runs, hull-to-deck joints, and any job where you’d go through a 3 oz. tube quickly. The 10 oz. cartridge format works with any standard caulk gun and is the practical choice for production work or larger repairs. For smaller touch-up jobs or tight spaces where a gun isn’t practical, see the \u003ca href=\"\/products\/sudbury-322-marine-sealant-3-oz-tube-black\"\u003eSudbury 322 – 3 oz. Tube, Black\u003c\/a\u003e. Need a white or clear finish in cartridge format? See the \u003ca href=\"\/products\/sudbury-300-marine-sealant-white-10-oz-cartridge\"\u003eSudbury 300 – 10 oz. Cartridge, White\u003c\/a\u003e or the \u003ca href=\"\/products\/sudbury-301-sealant-10-oz-cartridge-clear\"\u003eSudbury 301 – 10 oz. Cartridge, Clear\u003c\/a\u003e.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250760482852,"sku":"829-302","price":36.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/829-301_81bb3844-4359-4e7e-9468-3dadd2206554.jpg?v=1786509706","url":"https:\/\/marisolmarine.com\/products\/sudbury-302-marine-sealant-10-oz-cartridge-black","provider":"Marisol Marine Company","version":"1.0","type":"link"}