GYLON® Style 3504®

GYLON® Style 3504 is a PTFE gasket with aluminosilicate microsphere filler. This style gasket is widely used in glass-lined flanges and other light-duty flanges where available torque is limited.

GYLON® Style 3504 creats a tighter seal with improved performance over conventional PTFE which reduces product loss and emissions. The unique manfacturing process minimizes cold flow problems typical of skived and expanded PTFE sheets and has excellent bolt torque retention. GYLON® Style 3504 can withstand a wide range of chemicals for extended service life in a wide variety of applications.



GYLON® is a registered trademark of Garlock
  • Improved performance over conventional PTFE
  • Temperature Range: -450°F to 500°F
  • Unique manufacturing process minimizes cold flow problems
  • Withstands a wide range of chemicals for extended service life in a wide variety of applications
  • Ideal for wavy, warped, pitted, or scratched flanges, and for many types of flat faced flanges
  • Available in .0625" and .125" thicknesses
  • FDA
  • USP Class VI