Round Cords

Made of polyurethane foam, polyethylene or butyl. PE-round cords have a closed cell structure, therefore silicone does not adhere to the surface, they are used for joint space limit to avoid a three-sided adhesion. PU cords have an open-cell surface can be used as backfill material for indoor use without moisture. Butyl-round cords are used for waterproof sealing and bonding of joints or components.