Filler Foam 500ML Mamba

Black Mamba Filler Foam expands up to 65 times its original volume to take the share of cracks and cavities, forming a permanent, airtight and water resistant bond to wood, metal, masonry, glass and most plastics. This foam is twice as effective as fiberglass in insulting cracks, holes and hard-to-reach areas such as electrical boxes and vents.