PTFE with graphite filler.
- Graphite-filled PTFE offers extremely low void content for minimal emissions
- Black GYLON® delivers long service against volatile hazardous pollutants (VHAP and VOC)
- Withstands high concentrations of hydrofluoric acids and other glass-dissolving media
- Monomer service, cryogenics, highly concentrated hydrofluoric acid, volatile hazardous air pollutants (VHAP)