3M 3939 cloth-based adhesive tape, pressure-sensitive adhesive has excellent initial adhesion, can stick to all kinds of surface, back material has good adhesion, waterproof and can wear resistance. Back material can be torn by hand, very convenient to use. And can be sealed with a lot of surface bonding. Waterproof backing is durable and resistant to wear, moisture and environmental changes; 3m offers 3939 TM tape for easy tearing and comfort; the personal roll pack retains the integrity of the roll in order to reduce waste; the product number is printed at the core to ensure proper product use. Good Moisture Resistance; good tensile strength for harsh applications; rubber adhesive, insists aggressive, maintains good seal and top surface;
tested in accordance with UL723 and ASTME84.