Garlock Gylon 3504

    Garlock GYLON Style 3504 PTFE Gaskets

    Garlock GYLON Style 3504 gasketing material is made of PTFE with aluminosilicate microspheres. It is designed for use in many acids, some caustics, hydrocarbons, refrigerants, and more. With a tight seal that has an improved performance over a conventional PTFE material. With a reduced product loss and emissions and reduced creep relaxation this unique manufacturing process minimizes cold flow problems typical of skived and expanded PTFE sheets.

    The Garlock GYLON Style 3504 has an excellent bolt torque retention and withstands a wide range of chemicals for extended service live in a wide variety of applications. Garlock GYLON Style 3500 has branding and color coding that reduces misapplication. Additionally Garlock GYLON Style 3504 doesn't burn or support bacterial growth which makes it ideal for many acids and some caustics, hydrocarbons, solvents, water, refrigerants, cryogenics and hydrogen peroxide.

    For additional information on applications and usage, consult the experts at Gasket Supply.

    Features and Benefits

    The GYLON Style 3504 produces a tighter seal with an improved performance over conventional PTFE materials. With a unique manufacturing process that minimizes cold flow problems typical of skived and expanded PTFE sheets, the The GYLON Style 3504 reduces product loss and emissions with a reduced creep relaxation and excellent bolt torque retention. The GYLON Style 3504 can withstand a wide range of chemicals for extended service life in a wide variety of applications.


    • Color: Blue
    • PTFE with aluminosilicate microspheres
    • Meets ABS, FDA and USP specifications
    • Min. Temperature: -450°F / -268°C
    • Max. Temperature: 500°F / 260°C
    • Max. Pressure: 800 PSI / 55 bar
    • Maximum PxT 1/16: 350,000 °F x PSIG / 12,000 bar x °C
    • Maximum PxT 1/8: 250,000 °F x PSIG / 8,600 bar x °C

    Industrial Applications

    • Many acids and some caustics
    • Hydrocarbons
    • Solvents
    • Water
    • Refrigerants
    • Cryogenics
    • Hydrogen peroxide


    Gasket sizes are based on ASME/ANSI Class 150lb dimensions. For Class 300lb gaskets, custom cut gaskets, or any sizing questions, please feel free to reach out to a specialist for assistance >>

    Technical Specs for Garlock GYLON Style 3504