dowsil 991

DOWSIL 991 Silicone High Performance Sealant Medium-modulus elastomeric sealant designed for weatherproofing sensitive natural stone, glass and metal panels APPLICATIONS DOWSIL™ 991 Silicone High Performance Sealant is specially formulated to prevent staining of porous substrates such as natural stone and minimize streaking on metal panels and glass. call 991 It forms a durable, flexible, watertight