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This Emseal expanding sealant is UV-stable and will not dry out and become hard or brittle. The Expanding Foam Sealant maintains a seal during thermal expansion and contraction of building panels. The sealant has a self-adhesive on one side. After removal of packaging, the material begins gradual expansion.
Emseal is also known as a multi-use sealant tape (MST). When applied properly it seals out dust, air, wind-driven snow, and moisture from joint details in metal buildings, panels, roofs, and other building components and assemblies. The manufactures tell us that "MST is ideal as a filler in expansion/compression joints subject to movement from thermal expansion and contraction, and as a gasket in mechanically fastened, non-moving application. MST can be used against metal, plastic, wood, concrete, and other common building materials."Again it seals gaps in metal roofing panels maintaining weather tightness.
- Open cell high density acrylic-modified asphalt polyurethane foam, black color.
- High softening point.
- UV resistant.
- Low water vapor transmission.