Gasoila White PTFE High Density Thred Tape Roll, -400 to 500 Degree F Performance Temperature, 3.9 mil Thick, 576" Length, 3/4" Width White PTFE High Density Thread Tape Roll For use with wrapping pipe threads to create air and water tight connections. Thickness 3.9 mils Tensile minimum PSI 800 Density is .9-1.2 grams per cubic centimeter Temperature range -450 to 550 degree Fahrenheit