Intended to strip-in flat metal flanges (i.e. drip edge or self-flashing curb flanges) or rows of fasteners and plates. TPO PS Cover Strip cannot be used for flashing corners, pipes, T-joints or butt joints on TPO Fleece Back Membrane or any angled metal flanges such as gravel stops or other canted metal edgings. This product requires the use of TPO Tape Primer or Low-VOC Tape Primer.