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TDS SIS440 Caulk$0.00
SIS440 was strictly developed by TDS for teak deck seams. It is a well tested and proven product in hot or cold climates and needs NO PRIMER. A one-part silane polymer that forms a solid rubber compound, it is better than the polysulfides, polyurethanes and MS polymers. It has the highest rating resistance to UV, excellent resistance to chemicals and excellent temperature stability.