MFM Window Wrap Flex

The MFM Window Wrap Flex Self Stick Roll is a flexible waterproofing membrane tape that is used around curved window and door openings, as well as building joints. It is easy-to-apply and self-seals around nails, screws, and staples. It consists of a rubberized asphalt adhesive which is laminated to cross-laminate polyethylene crepe film. Crepe film allows Window Wrap Flex to be stretched around arched windows, doorways, and other popular curved shaped items. MFM Building Products manufactures the Flex Window Wrap to prevent water leaks, prevent air and insect infiltration, and reduce noise. Window tape must be covered within 90 days after application. MFM backs Window Wrap Flex Self Stick Roll with a 10 year limited warranty.