Polyurethane adhesive sealant SIS 440

teak deckcaulking

SIS440 Caulk is the proven leader in the marine industry and was developed specifically for teak deck seams. It is a onepart, paste-like neutral cure formulation and when exposed to moisture in the air, it reacts to form a tough, flexible solid rubber compound. The sealant does not sag during cure, and has excellent temperature stability and chemical resistance once cured. Because the sealant is neutral cure, it is non-corrosive to all substrates. Experience More than 50,000 decks manufactured and installed in 35 years; 166 miles (267 km) of caulked seams per year. Well-tested and proven in hot or cold climates. Used by boat builders, boat repair yards, marinas, private boat owners, cruise ships, and ship chandleries. One-Part Silane Polymer Forms a solid rubber compound with highest rated UV resistance; excellent resistance to chemicals; superior temperature stability. Cures to provide better adhesion, longevity and appearance as compared to polysulfide, polyurethane and MS polymers. Neutral Cure Non-corrosive to all substrates; no damage to the surrounding environment/structures Viscosity Thixotropic paste which does not drip or sag; easy to work because it stays flexible. Primer-free One-step process saves application time; no solvents; environmentally friendly; safe for work environment. Cure Time Black – Ready for sanding after a minimum of 48 hours at 68°F (20°C). This is based on seams ¼”x¼” (6.4 mm x 6.4 mm), larger seams may require additional time. White & Gray – May take 8-12 days to fully cure (see “White and Gray Caulking: Installation Guidelines and After-Care Suggestions”) Potentially decreases turnover time for projects.