Teflon® insulation materials are fluorinated thermoplastic with outstanding thermal, physical, and electrical properties. Teflon® is generally restricted to applications requiring its special characteristics due to relatively high processing costs. Teflon® is especially suitable for internal wiring soldering applications where insulation melt back is a specific problem. Belden Teflon® wire products are outstanding in their resistance to oil, ozone, aromatic hydrocarbons, water, alcohol, gasoline, acids, alkalis, oxidation, heat, sunlight and flame; and also in their ability to remain flexible at low temperatures.