Product Data Sheet

Medium-modulus elastomeric sealant designed for weather-proofing sensitive porous stone and metal panel substrates. Its proprietary formulation produces a sleek finish, which reduces residue rundown or dirt pick up, substrate staining and adheres unprimed to porous and non-porous substrates.

Applications

DOWSIL™ 756 SMS Building Sealant is particularly effective for sealing expansion and control joints, metal panel joints, curtainwall joints, joints between natural stone, and perimeter seals around window frames. It forms a durable, flexible, watertight bond with most building materials. DOWSIL™ 756 SMS Building Sealant is intended to be applied in new and remedial construction.

Features & 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, high movement capability – can accommodate ±50 percent movement in a properly designed joint.
• 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.