Teakdecking Systems (TDS) SIS440 Marine Caulk Sausage 20oz - Gray | Premium quality SIS440, first class appearance, UV & chemical resistant, non-corrosive, ideal for boats and yachts

Features

• HIGH QUALITY MARINE POLYMER 20oz sausage package of boat sealant waterproof made with a one-part silane polymer that forms a solid, rubber-like compound. Offers excellent UV and chemical resistance, superior temperature stability, and is easy to sand. This marine grade sealant improves project turnover time and is trusted in long-term marine caulking applications.
• FLEXIBLE & PRIMER-FREE Thixotropic paste that does not drip or sag, allowing for controlled application on vertical and horizontal seams. Stays flexible over time and requires no primer, making it an efficient marine sealant choice. Solvent-free and low waste, it's an environmentally conscious solution for marine use.
• FIRST-CLASS APPEARANCE Our marine caulking sealant is designed for seams 3 to 10mm wide to achieve a clean, uniform finish on teak decks. Seam depth should be equal to or greater than seam width for proper adhesion. When used with bond-breaker tape, this marine caulk helps support long-lasting, visually consistent deck seams.
• OPTIMIZED CURE TIME FOR CONSISTENT RESULTS Cures to a firm, flexible bond with reliable adhesion and durability, offering advantages over traditional polysulfide, polyurethane, and MS polymers. Gray caulk is sandable after a minimum of 48 hours at 68F (based on " x " seams). Larger seams may require more time. A dependable marine grade sealant for demanding environments.
• INDUSTRY-STANDARD FORMULA & PACKAGING OPTIONS Available in black, white, and gray, with an 18-month shelf life from the date of manufacture (printed on cartridge). Meets ASTM C920 standards and manufactured in an ISO 9001-certified facility, making it a consistent and compliant option for ongoing marine caulking and decking work.