Expanded PTFE Gasket Sheet Material is manufactured by expanding 100% virgin PTFE using a proprietary process that produces a uniform and highly fibrillated microstructure with equal tensile strength in all directions. The resulting product exhibits characteristics significantly different than conventional PTFE sheet. This style is much softer and more flexible than regular PTFE sheet and thus conforms easily to irregular and rough surfaces. In addition, the material is easier to compress and minimizes creep and cold flow.
Expanded PTFE Gasket Sheet Material is manufactured by expanding 100% virgin PTFE using a proprietary process that produces a uniform and
highly fibrillated microstructure with equal tensile strength in all directions. The resulting product exhibits characteristics significantly different than
conventional PTFE sheet. This style is much softer and more flexible than regular PTFE sheet and thus conforms easily to irregular and rough
surfaces. In addition, the material is easier to compress and minimizes creep and cold flow.
Application:
Expanded PTFE Gasket Sheet Material complies to FDA regulations for food contact and EU 1935/2004.
Expanded PTFE Gasket Sheet Material is an purpose gasket sheet that can replace all other types of PTFE sheet. It will seal all aggressive chemicals
over the entire 0-14 pH range, except for molten alkali metals and elemental fluorine. Made from 100% virgin PTFE, it not only resists chemical attack,
but it will not contaminate or discolor end products.
industries usage areas:
Distillers, Petrochemical , Food and Beverage, Pharmaceutical, General Chemical, Power Generation, Iron and Steel manufacturing, Pulp and Paper,
Marine.
Advantages:
Expanded PTFE gasket sheet for all applications. It is suitable for all types of flanges, nearly all media, a wide temperature range and for applications
with the toughest demands on purity. It is inherently clean and non-toxic. Gaskets of multi-directionally expanded PTFE have exceptional mechanical
strength which allows operation with minimal creep at elevated temperatures. Gaskets cut from Expanded PTFE Gasket Sheet Material are stable.
they do not get wider when compressed. This allows narrow flange face to be sealed safely
Specification:
Length1500mm xWidth1500mm xThickness 0.5-6m
Properties:
PROPERTY |
STANDARD |
VALUE |
Color |
- |
White |
Density |
ASTM D792 |
0.75-0.95g/cm3 |
Operating temperatures |
- |
-240 - 260°C |
Compressibility |
ASTM F36 |
45 % |
Recovery |
ASTM F36 |
12 -13% |
Creep Relaxation |
ASTM F38 |
35 – 36 % |
Sealability (Nitrogen) |
ASTM F 37B |
0.15 ml / hr |
Sealability (Fuel A) |
ASTM F 37B |
0.02 ml / hr |
Service Pressure |
- |
Full Vaccum to 19 MPa |
Tensile Strength Both directions |
ASTM D638 |
16 – 17 MPa |
Weather resistance |
- |
Excellent |
Chemical resistance |
- |
Excellent |