DuPont FlexWrap NF is a premium performance, extendable self- adhered flashing material that can be applied over a wide range of building substances, including non-nailable sheathing materials like PS foam board, fiberboard, concrete masonry unit (CMU) and other such materials. Unlike competitive products, DuPont FlexWrap NF does not require the use of mechanical fasteners in the flexed corner areas.

DuPont FlexWrap NF also flashes round-top or custom-shaped windows in a seamless manner, eliminating the need to cut and place individual pieces of conventional flashing on an arched opening.