3M Deck and Joist Flashing Tape 8047 is an all-weather translucent tape designed to protect against the environment and mechanical penetration. The proprietary translucent backing is highly conformable for versatility, with an aggressive acrylic-based adhesive formulated to work in most weather conditions. Translucent and thin with minimal buildup on overlaps. It is extremely conformable yet resists punctures and tears. Recommended Applications: flashing ledger boards, protecting exposed joists, sealing against mechanical penetrations, wrapping posts, flashing around windows and doors.