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Marine Sealant & Caulk

      • Boatlife LifeSeal Silicone-Polyurethane Sealant Tube
        List Price: $9.71
        Starting At: $7.77

        Boatlife Life-Seal Silicone-Polyurethane Sealant Boatlife Life-Seal is a unique combination of marine silicone and polyurethane, formulated especially for fiberglass. LifeSeal offers a fast-curing, low odor, high adhesion, non-sagging,...

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      • 3M 5200 Polyurethane Adhesive Sealant
        List Price: $21.76
        Starting At: $15.49

        3M Marine Adhesive Sealant 5200 3M's 5200 Adhesive Sealant is a one-part polyurethane used for permanent bonding. 5200 offers permanent adhesion to wood, gelcoat, and fiberglass, and forms watertight seals. Designed for the marine industry, this sealant...

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      • Boatlife Marine Silicone Rubber Sealant Cartridge
        List Price: $9.56
        Starting At: $7.99

        Boatlife Marine Silicone Rubber Sealant Boatlife Marine Silicone Rubber Sealant is an all-purpose, 100% marine high quality silicone sealant. This sealant is non-corrosive, acid-free, non-yellowing, mildew-resistant, and low-odor. This silicone rubber...

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      • Life Calk Polysulfied Sealant
        List Price: $9.95
        Starting At: $7.99

        Boatlife Life Calk Polysulfide Sealant Boatlife's Life-Calk is a long lasting, permanently flexible marine polysulfide sealant which can be sanded, painted, and used above and below the waterline. Life Calk Sealant is tack-free in 1 to 3 days, and...

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      • 3M Marine Grade Clear Silicone Sealant
        List Price: $17.27
        Starting At: $12.49

        3M Marine Grade Clear Silicone Sealant This high quality silicone sealant is a one-component cure, sealant engineered to withstand the harsh marine environment. This weather-resistant sealant is formulated to resist mildew and form a non-yellowing...

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      • Boatlife "Release" Adhesive and Sealant Remover
        List Price: $14.99
        Starting At: $11.99

        Boatlife "Release" Adhesive and Sealant Remover Boatlife's Release is ideal for removing cured silicone, polyurethane, and polysulfide. Use a scraping tool and Release to remove cured sealants from fiberglass, wood, metal, and glass. It is ideal on...

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      Marine Sealant

      When the surfaces on your deck and galley need sealing, it is not advisable to use a product from the aisles of the big box home supply retailers. For one thing, their products are not marine grade, so any repair or sealant will soon degrade making your efforts and time wasted. Come to Wholesale Marine instead. Our marine caulks and marine sealants are time-tested and guaranteed to seal out moisture and prevent corrosion.

      We offer a range of quality products from Sika, 3M, Boatlife, and Sudbury. Need to finish your chores and get out on the water? Sika’s 291 Fast Cure Caulk is a home run and is available in black or white. It dries quickly and is ideal for repairs where fast drying time is imperative. Available in a range of sizes, Boatlife’s Marine Silicone Rubber Sealant is a solid choice when repairing rubber, wood, fiberglass or metal and will remain flexible and tensile for years.

      Whatever the Chore, We Have the Marine Caulks and Sealants You'll Need

      If you need a great all-purpose sealant, put a tube of 3M 4200 Polyurethane Fast Cure Adhesive-Sealant 10oz White in your onboard toolbox. It is great for use above and below the waterline and will bond different materials such as fiberglass to wood. This makes it an ideal product for sealing portholes, deck fittings, rubrail attachments, for sealing screw holes, etc.

      Our customers always save time and money at Wholesale Marine. We offer the Captain's Club Rewards program and a low price guarantee, same day flat rate shipping, trouble-free returns, great customer service, and solid advice. We’re here Monday through Friday, from 9:00 AM until 6:00 PM EST, where our team of boating enthusiasts will be glad to help you out.