12 oz insulating sealant, moisture cure, polyurethane foam that expands to economically fill and seal large cavities. Stops air infiltration and will not degrade or shrink, contains a flame retardant.
Use for insulating and sealing around pipes, ducts, vents, electrical outlets and cables. Expands to form a permanent, waterproof bond to wood, concrete, metal, glass and brick. Can be used for filling large gaps and cracks in foundations, masonry walls, crawlspaces and more. Prevents energy loss, stops air filtration and will not degrade or shrink.
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