When the temperatures drop, ordinary tape falls shortbut Nashua 324A rises to the challenge. Designed specifically for cold weather conditions, this UL-coded foil tape delivers rock-solid performance when and where you need it most. Whether you're sealing ductwork in the dead of winter or wrapping insulation in a chilly basement, Nashua 324A sticks strongwithout cracking, lifting, or losing adhesion. Its durable aluminum foil backing and cold-weather acrylic adhesive create an air-tight, moisture-resistant seal that holds firm in temperatures as low as -20F. When the temperatures drop, ordinary tape falls shortbut Nashua 324A rises to the challenge. Designed specifically for cold weather conditions, this UL-coded foil tape delivers rock-solid performance when and where you need it most. Whether you're sealing ductwork in the dead of winter or wrapping insulation in a chilly basement, Nashua 324A sticks strongwithout cracking, lifting, or losing adhesion. Its durable aluminum foil backing and cold-weather acrylic adhesive create an air-tight, moisture-resistant seal that holds firm in temperatures as low as -20F. And with 60 yards of tape nearly 3 inches wide, you get long-lasting coverage that's as reliable as it is efficient. And with 60 yards of tape nearly 3 inches wide, you get long-lasting coverage that's as reliable as it is efficient.