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Gylon 3504 product style is PTFE with aluminosilicate microspheres.


  • Tighter seal with improved performance over conventional PTFE
  • Unique manufacturing process minimizes cold flow problems typical of skived and expanded PTFE sheets
  • Excellent bolt torque retention
  • Withstands a wide range of chemicals for extended service life in a wide variety of applications
  • Cuts operational costs through reduced fluid loss, energy consumption, maintenance costs, inventory costs, and waste
  • Offers some of the largest sheet sizes in the industry
  • Easy identification of superior GYLON® products
  • Reduces misapplication and use of unauthorized, inferior substitutes

Service Media

  • moderate concentrations of acids and some caustics
  • Hydrocarbons
  • Solvents
  • Water
  • Steam
  • Refrigerants
  • Cryogenics, hydrogen peroxide (For oxygen service, specify “Style 3505 for oxygen service.”)

Gylon 3504 Specifications

Min. Temperature:-450°F
Max Temperature:500°F
Max Pressure:800 (PSI)
Maximum PxT 1/16:350,000 (°F x PSIG)
Maximum PxT 1/8:250,000 (°F x PSIG)