Willseal® 600 is a pre-compressed, self-expanding foam joint seal, engineered to perform as a highly-flexible, weathertight, primary seal in vertical exterior applications with a movement capability of ± 50%. The high-density polyurethane foam self-expands to fill the joint creating an elastic, vapor-permeable, weathertight seal.

Features

• Increased R-Value: Depth of foam can be changed to increase R-value
• Lasting Durability: UV-stable and remains permanently flexible for lifetime of seal
• Easy Application: Available in both sticks and rolls that are treated with a pressure-sensitive adhesive (PSA) on one side for ease of installation; no mixing, masking or priming required
• Multi-Use: Use in various weather and temperature conditions