Flex-Mend is a time-tested mending product that matches the appearance and texture of bottom board closure materials used by most manufacturers in the mobile home industry today. Flex-Mend is a woven polyethylene film that meets all requirements for use as bottom board by the mobile home industry. It is solid-coated with specially formulated, high tech adhesive, and has an easy-to-remove release liner. It goes on like a stick-on bandage! Every roll of Flex-Mend is wound on a core with the Flex-Mend Logo.