| PTFE-Gasket
Properties |
|
| Material
code designation
DIN ISO 1629 |
PTFE |
| Material
code designation
ASTM D 1418 |
PTFE |
|
Material
name / description |
Poly-Tetra fluorine ethylene |
|
Trade name (part-protected !) |
Teflon, Hostaflon |
|
Low temperatur operating area
from |
-200°C |
|
High temperatur operating area
up to |
+260°C |
|
Main
area of application |
Chemical Industry |
|
Excellent
swelling resistance against |
The chemical resistance towers above that one of all elastomers and other thermoplastics. A good swelling resistance in almost all media is therefore given. |
|
Evil
swelling resistance against |
|
|
Miscellaneous |
It have to be taken into account at the application from pure PTFE that the material deforms by creeping or cold flow from a certain load lastingly and that the material is not rubbery-elastic but horny like polyethylene.
For this reason constructions cannot switched with elastomer gaskets straight over to PTFE! |
