|
|||||||
|
Material
Comparative Technical Data
|
|||||||
|
Property
|
PTFE
|
TFM
|
PFA
|
FEP
|
Polypropylene
|
||
|
Appearance |
Ivory-White Opaque |
Ivory-White Opaque |
Translucent |
Clear
|
Translucent |
||
|
Density
(g/cm3) |
2.15 |
2.15
|
2.15
|
2.14 |
.09 |
||
| Melting Point (°C/°F) |
327/621 |
327/621 |
305/581 |
270/518 |
160/320 |
||
|
Maximum Service Temp (°C/°F) |
290/554 |
290/554 |
260/516 |
205/401 |
110/230 short |
||
| Chemical Resistance |
Excellent |
Excellent |
Excellent |
Excellent |
Good (Not for use with Hydrocarbons & oxidizing acids) |
||
| Water Absorption |
Zero |
Zero
|
Zero |
Zero |
Zero |
||
| Hardness (Shore) |
60 |
60 |
63 -65
|
63 -65
|
|||
| Tensile Strength at 23°C/73°F (N/mm2) |
20 -
40 |
40 |
15 -
25 |
20 -
30 |
35 |
||
| Elongation at Break (%) |
250 - 500 |
250 -
300 |
100 -
250 |
250 -
300 |
Non Flammable |
||
| Flammability |
Non Flammable
|
Non Flammable |
Non Flammable |
Non Flammable |
Ignites
by flame contact and will burn |
||
| V.R. (Ohms.cm) |
10 |
10 |
10 |
10 |
10 |
||
| Cost Index |
1.0 |
1.25 |
3.0 |
2.5 |
0.25 |
||
|
Copyright
© 2001-2006 Mastco Inc.,
All rights reserved. 1524 |
|||||||