PTFE Gaskets include pure PTFE gasket,expanded PTFE
gasket,filled PTFE gasket and PTFE spiral wound gasket.
Pure PTFE gasket is manufactured by molding method with PTFE granular resin.
PTFE compared with other plastics, has a superior properties
against chemicals and temperature. Because of such excellent
properties, PTFE has a wide application as a sealing material.
Tensile strength (min)
Ultimate elongation (min)(min)
Expanded PTFE gasket is cut from expanded PTFE sheet. We could produce any size.
And we also produce according customer request.
Filled PTFE gasket is manufactured by moding method with filled PTFE resin.
Filled PTFE resin is manufactured by compounding PTFE granular
resin with fillers of many differents kinds. Amongst the many
fillers suitable for compounding with PTFE, glass fiber, carbon
fiber, Bronze and also lubricating materials like graphite,
molybdenum disulphide, have been widely used in large scale
production, Broadly speaking PTFE compounds have the following
advantage over unfilled.
Filled compound and Content by wt
Tensie strength MPa(min)
Ultimate strength %(min)
Compresive strength MPa(min)
20% glass fiber
25% glass fiber
20% glass fiber 5% graphile
15% carbon fiber
24% Bronze 12% glass fiber 6% graphile
15% glass fiber 10% Polyikmide 5% graphile
PTFE spiral wound gasket is corrosion resistant and high pressure product. By
winding metal with PTFE is model PTFE spiral wound gasket. It could
fix the outer ring or inner ring, even with outer and inner ring.