Garlock GYLON® Style 3545 gasketing material is a highly compressible microcellular PTFE with a rigid PTFE core for improved handlability. The GYLON® 3545 designed to compress and conform to irregular or damaged surfaces, making it suitable for flanges that generate lower compressive stresses, such and glass-lined flanges and equipment. This highly compressible PTFE material has outer layers that seal under low bolt load. Its compressible layers conform to irregularities, especially on warped, pitted, or scratched flanges while its rigid PTFE core reduces cold flow and creep.
The Garlock GYLON® Style 3545 has a rigid PTFE core that facilitates easy installation, especially on larger diameter flanges and hard-to-reach areas. Garlock GYLON 3545 withstands a wide range of chemicals, does not support flame or bacterial growth. It is most commonly used in applications with strong caustics, strong acids, hydrocarbons, chlorine, cryogenics, glass-lined equipment and 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 the experts at Gasket Supply to confirm that adequate compressive stress is available.