Masters® TWB480G 0.50" x 480" White Teflon Tape. Non-corrosive, non-flammable, clean, easy to use thread sealing tape. Because it is chemically inert, it seals all metal and plastic threaded connections against leakage of virtually. Everything at temperatures between -400°F & +600°F (-240°C & +316°C). Allows for easy disassembly of joints, even after years of service.