GYLON®, a product of Garlock Sealing Technologies, is a reinforced PTFE gasketing material that offers significantly reduced creep relaxation and excellent chemical resistance, along with easy identification due to branding and color coding.

GYLON® Style 3530 Benefits

  • Tighter seal – provides exceptional performance in comparison to conventional PTFE; achieves reduced emissions and product loss
  • Chemical resistance – service life is extended due to its ability to withstand a broad range of chemicals
  • Acid resistance – against high concentrations of glass-dissolving media and hydrofluoric acids


GYLON® Style 3530 Material Properties

Color: Black
Composition: PTFE with graphite
Fluid Services Monomer service, cryogenics, highly concentrated hydrofluoric acid, and volatile hazardous air pollutants (VHAP)
Min. Temperature: -450 (°F)
Continuous Max: 500 (°F)
Max. Pressure: 1200 (PSI)
Maximum PxT 1/16: 350,000 (°F x PSIG)
Maximum PxT 1/8: 250,000 (°F x PSIG)
Flammability: Will Not Burn
Bacterial Growth: Will Not Support