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An integral part of Dupont™ Tyvek® Weatherization Systems

DuPont™ Weatherization Sealant is scientifically formulated to bond with DuPont™ Tyvek® Weatherization Systems, helping create a breathable, protective barrier to increase energy-efficiency; reduce heating and cooling costs; and help protect against water infiltration that could lead to formation of damaging mold and mildew in wall structures.

Two formulations for maximum protection:

All Climate—effectively seals across a broad range of temperatures and climate conditions.

Dry Climate—specially formulated to ensure proper adhesion and curing in dry climates.

Effective in a variety of applications

  • Window and door installation
  • Window and door weather sealing and caulking
  • Siding and trim
  • Stucco
  • Hardboard siding
  • Flashing
  • Penetrations

Easy to use. Easy to clean.

  • Greater than 800% elongation
  • Mildew-resistant when cured
  • Easy clean-up with water
  • Paintable
  • Excellent gunnability
  • Vacuum packed for maximum gun performance (no air bubbles)
  • AAMA compliant
  • Exceeds ASTM C920, Class 25
  • VOC compliant

Excellent adhesion to most substrates

  • DuPont™  Tyvek®
  • Wood
  • Glass
  • Marble
  • Vinyl
  • Metal
  • Porcelain
  • Ceramic tile
  • Many other construction materials

10-Year Limited Warranty

DuPont™ Weatherization Sealant comes backed by a 10-Year Limited Warranty , protecting the homeowner’s investment and the builder’s reputation now and into the future.

Literature Available

See related documents, such as FAQs, installation guides and physical property data sheets, in the Technical Information section of this web site.