Description

Willseal® 600 & 600S is a pre-compressed, self-expanding foam joint sealant, engineered to perform as a highly flexible, weathertight, primary or secondary seal in vertical exterior applications. (600 for primary or secondary; 600S in secondary only). 600S is specifically designed to provide the ideal foundation for a large variety of wet sealants, such as silicone, polyurethane, polysulfide, and acrylic.