PTFE thread seal tape: 1.Heat-resistance. 2.High pressure resistance. 3.Acid and alkali resistance. 4.Varied colors. Yaxing's PTFE thread seal tapes are ... popular in domestic market. These PTFE film products are recommended for use ... water, gas, oxygen, chemicals, and other fluids or gases. Color: White, Black,Brown &Grey.Thickness: 3.5 milsWidth: 1 ...