Mildew resistant organopolysiloxane compositions

摘要

A mildew resistant organopolysiloxane composition is provided, including (A) an organopolysiloxane having silanol groups or alkoxyl groups, (B) a hydrolyzable silane, and (C) a triazolyl group-containing compound. The composition further includes (D) bis(2-pyridylthio-1-oxide) zinc salt. The composition is excellent in mildew resistance and its durability as well as excellent in heat resistance and weathering properties. The cured products hardly undergo discoloration if exposed to UV light or heat. The composition is useful as a sealant to be used at wet