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Free Shipping on orders over $49A ready-to-use multi-purpose polyurethane foam that expands to three times its original volume on contact with air. The expanding action fills holes, cracks and gaps more completely than standard caulks. Designed for air sealing; partition walls with ceiling, through penetrations around cables and pipes, seams between chimneys, and roof protection. Excellent insulating properties and superb adhesion to virtually all building materials.
