Willseal 600/600S

Breathable Primary (600) or Secondary (600S) for Vertical Applications

Willseal® 600 is a pre-compressed, self-expanding foam joint seal, engineered to perform as a highly flexible, weather-tight, primary seal in vertical exterior applications. The high-density polyurethane foam is impregnated with a modified flame retardant, hydrophobic, UV stable acrylic resin and treated with a pressure-sensitive adhesive on one side for ease of installation. Willseal 600 self-expands to fill the joint creating an elastic, vapor-permeable, weathertight seal.

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

Basic Uses
  • Primary seal in starter track assemblies for window wall (600 Only)
  • Expansion, control, isolation & retrofit joints (600 Only)
  • Secondary expansion, control, isolation & retrofit joints (600S Only)
  • Window and flashing applications (600S Only)
  • Secondary construction joints behind a wet seal
  • Joints in pre-cast concrete, masonry, brick, and facades
  • Roofing and insulated metal panels
  • Exterior insulation finish systems (EIFS)
  • Interior vapor, dust, acoustical, and air control
Download Data Sheet get_app
Languages
Download
Find Your Sales Rep location_on