DOWSIL™ 756 SMS Building Sealant

About this product

DOWSIL™ 756 SMS Building Sealant is a one-part, medium-modulus, neutral-curing silicone elastomeric sealant for weathersealing sensitive substrates where the aesthetic performance of the sealant is important. The sealant is intended for weathersealing skylights, glass facades, porous natural stone, and panel systems where staining and residue rundown streaking must be minimized. It is available in a variety of colors. Benefits Cures to form a unique sleek, dry matte finish surface Improved aesthetic performance reduces long-term residue rundown on metal panels and reflective glass or staining on porous substrates Good working and tooling time All-temperature gunnability from -29 to 50°C (-20 to 122°F), permitting application in all seasons Medium-modulus +/- 50% joint movement capability Unprimed adhesion to most glass, brick, granite and fluoropolymer painted substrates Primed adhesion to other common construction substrates, such as marble, limestone and concrete Excellent weatherability non-reverting silicone durability Compatible with open-cell polyurethane, closed-cell polyethylene and nongassing polyolefin backer rods