DOWSIL™ 756 SMS Building Sealant

中等模量的弹性密封胶，用于耐候性天然石材、玻璃和金属板，可减少新施工和维修工程中的残留物和基材污染。

用途:

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; forms a durable, flexible, watertight bond with most building materials; intended to be applied in new and remedial construction

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

这些数值为典型性能，并且不用于在规格制定过程中使用。

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