Asphalt highway joint sealant

摘要

A self-leveling silicone composition, which is useful as a sealant in contact with asphalt, cures upon exposure to moisture in the atmosphere to an elastomer having an elongation of at least 1200 percent and a modulus at both 50 and 100 percent elongation of less than 25 pounds per square inch. The composition consists essentially of a hydroxyl endblocked polydiorganosiloxane, non-acidic, non-reinforcing treated filler, diacetamido functional silane, aminoxysilicone crosslinking compound and non-reactive silicone fluid diluent.