BOSS® 333 is a ready-to-use, multi-purpose, polyurethane foam that expands to three times its original volume when in contact with air. This volume expansion capability fills holes, cracks, and gaps more completely than standard caulks. The product also has excellent insulating properties and superb adhesion to virtually all building materials.
This product is available in Champagne.
Available in a 750 ml aerosol can.