TEAKDECKING SYSTEMS SIS440 TEAK DECK CAULKING – TDS Teak Caulking is a one-part, silane polymer system which when exposed to moisture in the air reacts to form a tough, flexible solid rubber compound. TDS Teak Caulking is a thixotropic material that does not sag during cure, and, when cured, has excellent temperature stability and chemical resistance. Because the sealant is neutral cure, it is non-corrosive to all substrates. It is a well tested and proven product in hot or cold climates and needs NO PRIMER. It also has the highest rating resistance to UV, excellent resistance to chemicals and excellent temperature stability. Sold by the 10 oz. (300 ml) tube and 20 oz. (600 ml) sausages.