Is PTFE High-Temperature Fabric an Insulating Material?

PTFE high-temperature fabric is indeed an insulating material — and an outstanding high-temperature resistant insulating material. Its insulating properties derive from the combined effect of both the substrate and the coating.

Synergistic Insulation from Substrate & Coating: Fiberglass substrate (excellent inorganic insulator) + PTFE coating (volume resistivity > 10¹⁸ Ω·cm; breakdown voltage > 20 kV) — dual insulation protection.

Wide Temperature Range Stability: Stable insulation from -70°C to 260°C; maintains effectiveness even at short-term 300°C.

Chemical Corrosion-Resistant Durability: Resistant to strong acids, alkalis, and organic solvents — suitable for chemical and electroplating corrosive environments.

Applications: Motor/transformer winding insulation; high-frequency welder insulation gaskets; anti-static + insulation workstations for electronics manufacturing.