DOWSIL 758 Silicone Weather Barrier Sealant

Product Description

Features

• Excellent adhesion to a wide range of builiding materials, including polymeric surfaces that are traditionally difficult to adhere tom such as peel and stick weather resistant barriers
• Priming not required on most surfaces
• Adheres to many polyethylene film based weather resistant barriers
• Contributes to improved air tightness of window installations
• UV resistant
• Excellent durability, does not become brittle or crack.
• Movement capability of +/- 25% in a properly designed joint

Applications

• Interior air sealing between a sheet or liquid applied weather resistant barrier and fenestration element
• Edge lap seal for weather resistant barriers
• Sealing penetrations in weather resistant barriers such as plumbing or ductwork
• Sealing other difficult to adhere surfaces such as mill finishes and plastics