Foster® 30-45™ N Foamseal® Sealant seals the joints of cellular glass and other insulations against the entrance of moisture. When used as a bedding compound on iron or steel surfaces and as a joint sealant, Foamseal Sealant provides additional protection to the blocks of insulation. Damage to the insultation due to migration of moisture is minimized.

Foamseal Sealant is water and weather resistant and is often used as a sealant and flashing compound where structural parts must penetrate an insulation surface.