1. Resistance to chemical corrosion 2. Have the best insulation 3. Abrasion rub 4. Use of a wide range 5. Are ... PTFE has the best chemical corrosion resistance and dielectric properties, able to -180 ° ~ + the use of 260-degree temperatures, with ... friction coefficient.PTFE PTFE's unique properties make use of the chemical, petroleum, textiles, food, paper, medicine, electronics and machinery ...