DOWSIL / Dow Corning 756 SMS Black Silicone Building Sealant is a medium-modulus elastomeric sealant designed for weatherproofing sensitive porous stone and metal panel substrates to reduce residue rundown and substrate staining in new and remedial construction.
This 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. It is intended to be applied in new and remedial construction.
***16 Sausages per case. Individual sausages are available for purchase***
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 -20 to 122 degrees Fahrenheit 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 substrates such as marble, limestone and concrete.
Compatible with open-cell polyurethane, closed-cell polyurethane and non-gassing polyolefin backer rods.
20-oz [591-mL] sausage