The following is about Expanded PTFE Sheet related, I hope to help you better understand Expanded PTFE Sheet.
xpanded PTFE Sheet:
Expanded PTFE sheet is an extremely compressible material manufactured from 100% virgin PTFE，It is a food approved product and has excellent resistance to a wide range of chemicals, making it a popular sealing material in the food, drink and pharmaceutical industries 。It will not exhibit the cold flow problems associated with virgin PTFE or the hardness problems of some other filled PTFE products. It has excellent sealability, cuts easily, and separates cleanly from flanges after use
Technical Data
|
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 |
