GYLON^® Style 3545 Microcellular PTFE Gasketing for Low Bolt Load Applications

• Tight seal
• Highly compressible PTFE outer layers seal under low bolt load
• Compressible layers conform to irregularities, especially on warped, pitted, or scratched flanges
• Rigid PTFE core reduces cold flow and creep
• Withstands a wide range of chemicals
• Can be cut from larger sheets, reducing inventory costs and expensive downtime
• Rigid PTFE core facilitates installation, especially on large diameter flanges and hard-to-reach areas
• Will not support flame
• Will not support bacterial growth

• Available in sheet or cut gasket form
• White
• Microcellular PTFE
• Conforms to FDA regulations and ABS specification
• Min. Temperature:        -450°F     /        -268°C
• Max. Temperature:     500°F        /     260°C
• Max. Pressure:        1200 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

• Strong caustics
• Strong acids
• Hydrocarbons
• Chlorine
• Cryogenics
• Glass-lined equipment†
• Low bolt load applications*

*For flat face flanges, a minimum compressive stress of 1,500 psi is recommended on the contacted gasket area for 150 psig liquid service. Consult with the flange manufacturer to confirm that adequate compressive stress is available.

† When sealing uneven flanges, gasket must be four times thicker than maximum gap between flanges.