Garlock Gylon Gasket Material Style HP3561

Style HP3561

High Pressure Gasketing


Tight seal

  • Perforated stainless steel core increases resistance to pressure fluctuations and thermal cycling
  • GYLON® offers superior cold flow and creep resistance, eliminating the need for frequent retorquing

Chemical resistance

  • Seals aggressive chemicals in hostile environments where safety or blowout resistance is crucial*


  • Strong caustics
  • Moderate acids
  • Chlorine
  • Gases
  • Water
  • Steam
  • Hydrocarbons
  • Cryogenics
  • Aluminum fluoride (For oxygen service, specify “HP3563 for oxygen service.”)

*Consult Garlock Applications Engineering when using flanges in pressure classes above 300lbs.

Continuous Max:+500°F (+260°C)
Max Pressure:2500 psig (172 bar)
Maximum PxT 1/16:700,000 (°F x PSIG)
Maximum PxT 1/8:450,000 (°F x PSIG)
ASTM F104F451999A9B2E99K5M6(3,4)


[text-with-icon icon_type=”font_icon” icon=”icon-download” color=”Accent-Color”]Gylon® Style HP3561 Data Sheet[/text-with-icon]