Additional InformationHUD Section 507-6 Federal Specification, ASHRAE 90-75
Marketing InformationDraft-Block is a one component expanding polyurethane foam sealant that expands to 3-times its original dispensed volume. It is designed to reduce heating and cooling costs by filling and insulating openings. Draft Block is an effective acoustical sealant and reduces sound transmission. Its dielectric formula will not transmit an electric current and adheres readily to wood, glass, metal, tile, concrete and most plastics.