Heng's Putty Tape is ideal for rubber roofs. Its heavy, flexible, non-hardening butyl material remains pliable as packaged. Can be used to seal and waterproof overlapping metals and easily shapes and forms to seal difficult areas. Great for use under moldings, around windows, doors and vents. May also be used under framed walls as a sound moisture barrier. The recommended temperatures are -30°F to 200°F.
