Marine Sealant & Caulk

      • 3M 5200 Polyurethane Fast Cure Adhesive-Sealant
        List Price: $25.06
        Starting At: $17.80

        3M 5200 Polyurethane Fast Cure Adhesive-Sealant 3M 5200 Polyurethane Fast Cure Adhesive Sealant is a one-component sealant designed to meet the high demands of the marine environment. 5200 Fast Cure provides strong watertight bonds and has permanent...

        Choose Options
      • Boatlife LifeSeal Silicone-Polyurethane Sealant Tube
        List Price: $9.71
        Starting At: $8.74

        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,...

        Choose Options
      • Sika Sikaflex 291 Fast-Cure Marine Sealant
        List Price: $17.69
        Starting At: $15.92

        Sika Sikaflex 291 Fast-Cure Marine Sealant Sikaflex 291 Fast-Cure Marine Sealant is a general all-purpose marine sealant, which may be used for light duty bonding. 1-component, marine grade polyurethane elastomeric adhesive and sealant. Its fast cure...

        Choose Options
      • 3M 5200 Polyurethane Adhesive Sealant
        List Price: $21.76
        Starting At: $15.45

        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...

        Choose Options
      • Boatlife Marine Silicone Rubber Sealant Cartridge
        List Price: $9.56
        Starting At: $8.60

        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...

        Choose Options
      • 3M 4200 Polyurethane Fast Cure Adhesive-Sealant 10oz White
        List Price: $35.74
        Starting At: $21.45

        3M 4200 Polyurethane Fast Cure Adhesive-Sealant 10oz White 3M Fast Cure Marine Sealant is a one-component, medium-strength, moisture-curing, gap-filling polyurethane that delivers strong flexible bonds to aluminum, wood, gelcoat, and fiberglass. It...

        Add to Cart
      • Life Calk Polysulfied Sealant
        List Price: $9.95
        Starting At: $8.96

        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...

        Choose Options
      • Sika Sikasil GP Silicone Sealant
        List Price: $6.82
        Starting At: $6.13

        Sika Sikasil GP Silicone Sealant 295 ml cartridge Sikasil GP is a general purpose, one-component, non-sag, elastomeric, 100% RTV acetoxy silicone sealant. This sealant is resistant to temperature, mold, water-based cleaning chemicals, UV radiation,...

        Choose Options
      • 3M Marine Grade Clear Silicone Sealant
        List Price: $17.27
        Starting At: $12.26

        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...

        Choose Options
      • Sika Sikaflex 292i Polyurethane Adhesive - White
        List Price: $28.62
        Now: $24.32

        Sika Sikaflex 292i Polyurethane Adhesive - White 300 ml cartridge  Sikaflex 292i Polyurethane Adhesive is suitable for structural joints in marine constructions which will be subjected to high dynamic stresses. Sikaflex 292i exhibits excellent...

        Add to Cart
      • Boatlife "Release" Adhesive and Sealant Remover
        List Price: $15.07
        Starting At: $13.56

        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...

        Choose Options
      • Sudbury Elastomeric Marine Sealant - 10oz Cartridge - Clear
        List Price: $19.00
        Starting At: $14.99

        Elastomeric Marine Sealant - 10oz Cartridge - ClearA one-part, fast skinning (10 minutes) and fast curing (24 hours) multi-purpose marine grade sealant with superior strength, adhesion, elongation and life characteristics. Cures in temperatures of...

        Add to Cart
      • Sudbury Elastomeric Marine Sealant - 10oz Cartridge - Black
        List Price: $19.00
        Starting At: $14.99

        Elastomeric Marine Sealant - 10oz Cartridge - BlackA one-part, fast skinning (10 minutes) and fast curing (24 hours) multi-purpose marine grade sealant with superior strength, adhesion, elongation and life characteristics. Cures in temperatures of...

        Add to Cart
      • Sudbury Elastometric 3 oz (89ml) Sealant Tube - Black
        List Price: $10.75
        Starting At: $8.99

        Elastometric 3 oz (89ml) Sealant Tube - BlackA one-part, fast skinning (10 minutes) and fast curing (24 hours) multi-purpose marine grade sealant with superior strength, adhesion, elongation and life characteristics. Cures in temperatures of -20°F...

        Add to Cart

      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.