Willseal 150 Pre-Compressed Foam Sealant

TDS

Willseal 150 is a high-performance, pre-compressed self-expanding foam joint seal designed for vertical exterior applications. It creates a flexible, weather-tight primary seal that self-expands to fill gaps, providing long-lasting protection against rain, wind, dust, and air infiltration.

Engineered for easy installation, the high-density polyurethane foam requires no mixing, masking, or priming and is available in stick and roll formats with optional pressure-sensitive adhesive for efficient application. UV-stable and permanently flexible, Willseal 150 also contributes to improved thermal and acoustic performance.

Key Features:

• • Self-expanding, flexible primary vertical seal

  • Weathertight and vapour-permeable performance

  • UV-stable and permanently flexible foam

  • Easy installation with optional adhesive backing

  • Enhances thermal and sound properties

  • Ideal for expansion, control, and construction joints

1. All stick and roll orders must be supplied in complete units as indicated in the "Joint Size and Depth" column
2. Fire-Rated Orders are per specific designs and systems (especially the number of sides that need to be coated per the UL Listing), reference Price List for available configurations or contact Technical Support at (800) 274-2813
3. Not all FR sizes are available in all configurations. Refer to the Price List for available configurations or contact Technical Support at (800) 274-2813
4. Uncoated FR systems are intended for interior or secondary applications only
   Willseal is not responsible for Engineering Judgements unless indicated in writing on a case-by-case basis
5. Material to be provided in standard sticks/rolls with standard accessory silicone/sealant, epoxy, and splice adhesive as required