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May 20, 2024
What is PTFE-coated fiberglass fabric?

PTFE-coated fiberglass fabric is a composite material made by coating fiberglass cloth with polytetrafluoroethylene (PTFE), a high-performance fluoropolymer. This combination results in a fabric that inherits the strength and durability of fiberglass along with the exceptional properties of PTFE.

Key Characteristics

  1. High Temperature Resistance:

    • PTFE-coated fiberglass fabric can typically withstand temperatures up to 500°F (260°C) and sometimes higher, making it suitable for high-heat applications.
  2. Non-Stick Surface:

    • The PTFE coating provides a smooth, non-stick surface, which is ideal for applications where materials should not adhere to the fabric.
  3. Chemical Resistance:

    • The PTFE layer is highly resistant to most chemicals, acids, bases, and solvents, ensuring durability in chemically harsh environments.
  4. Low Friction:

    • PTFE has a low coefficient of friction, which makes the fabric suitable for applications where sliding contact occurs.
  5. Electrical Insulation:

    • The fabric offers excellent electrical insulation properties, making it useful in electrical and electronic applications.
  6. UV and Weather Resistance:

    • PTFE-coated fiberglass fabric is resistant to UV radiation and weathering, suitable for outdoor applications.
  7. Moisture Resistance:

    • The material is impervious to water and moisture, providing long-term performance in humid or wet conditions.

Manufacturing Process

  1. Fiberglass Cloth Production:

    • Fiberglass yarns are woven into a cloth, providing a strong and flexible substrate.
  2. PTFE Coating:

    • The fiberglass cloth is coated with PTFE, often through a dipping or lamination process, and then cured to bond the PTFE to the fiberglass.


  1. Industrial Belting:

    • Used in conveyor belts for high-temperature processes, such as in the food, packaging, and textile industries.
  2. Heat Sealing and Release Liners:

    • Employed in heat sealing machines where a non-stick surface is crucial.
  3. Insulation:

    • Utilized in thermal insulation blankets, jackets, and covers due to its heat resistance and insulating properties.
  4. Electrical Insulation:

    • Serves as an insulating material in electrical components and wiring.
  5. Chemical Processing:

    • Suitable for linings and covers in chemical processing plants due to its chemical inertness.
  6. Architectural Membranes:

    • Used in roofing and architectural structures where durability and weather resistance are essential.


  • Durability: The fiberglass core provides mechanical strength and durability, while the PTFE coating enhances its functional properties.
  • Versatility: Suitable for a wide range of applications across various industries.
  • Performance: Combines the best attributes of both materials, resulting in a high-performance fabric.


  • Cost: PTFE-coated fiberglass fabric is generally more expensive than other coated fabrics due to the high cost of PTFE.
  • Handling: Requires specialized tools and techniques for cutting, sewing, and bonding due to the properties of PTFE.


PTFE-coated fiberglass fabric is a robust, high-performance material used in applications demanding high-temperature resistance, non-stick properties, and chemical inertness. Its unique combination of fiberglass and PTFE makes it suitable for demanding industrial and commercial uses.

EAS Fiberglass Co., Ltd is a professional fiberglass products supplier and provides comprehensive and effective material industrial solutions covering the market of high-performance FRP, highly effective temperature insulation, and highly convenient construction. Nowadays, EAS owns various product lines of fiberglass yarn forming, woven fabricsfabric coating/lamination, FRP, etc. The complete product lines enable EAS to master the quality control and products market competitive. Taking this advantage involves us in many projects and enhance brand promotion. Certified ISO9001-2008 equips EAS staff and management with a more professional operation. Certification of test reports for products is made by third-party laboratories SGS, TUV, DNV, etc.