Fluoropolymer Material Properties: PTFE, FEP, PFA, ETFE, PCTFE & PVDF
Reference comparison for six fluoropolymer families
This comparison preserves the original published material-property data. Values are reference ranges or typical figures and can vary by resin grade, supplier, specimen, conditioning and test method. Use the exact resin datasheet and component validation for design decisions.
Continuous-use temperature, friction, dielectric, tensile, chemical and flammability data are not automatic ratings for an extruded tube or finished medical device.
|
Property |
PTFE |
FEP |
PFA |
ETFE |
PCTFE |
PVDF |
|
Specific gravity |
2.14-2.2 |
2.12-2.17 |
2.12-2.17 |
1.7-1.86 |
2.1-2.14 |
1.75-1.78 |
|
Melting point(℃) |
327 |
270 |
310 |
270 |
220 |
173-175 |
|
Contact angle(degree) |
110 |
114 |
115 |
96 |
84 |
82 |
|
Maximum temp.for continuous use(℃) |
260 |
200 |
260 |
150 |
120 |
150 |
|
Tensile strength(MPa) |
20—45 |
19–22 |
27–31 |
40–46 |
31–41 |
39–59 |
|
Elongation(%) |
200—400 |
250–330 |
280–300 |
420–440 |
80–250 |
300–450 |
|
Static friction coefficient |
0.02 |
0.05 |
0.05 |
0.06 |
0.08 |
0.4 |
|
Dielectric constant |
2.1 |
2.1 |
2.1 |
2.6 |
2.3—2.7 |
7.72 |
|
Dielectric dissipation factor |
<1×10-5 |
6×10-5 |
1×10-5 |
8×10-4 |
(2.3-2.7)×10-2 |
1.9×10-2 |
|
Dielectric breakdown strength(V/mil) 3.2milímetros |
500 |
500 |
500 |
400 |
500 |
260 |
|
Volume resistance(Ω-cm) |
>1018 |
>1018 |
>1018 |
>1016 |
>1016 |
>2×1014 |
|
Chemical resistance |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
Weatherability |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
Combustibility(Oxygen%) |
>95 |
>95 |
>95 |
31 |
>95 |
43 |
MAIS :PTFE FEP PFA tamanhos de tubos médicos AWG POLEGADAS MÉTRICAS Tubo de ptfe Tubo de ptfe termorretrátil Tubo de ptfe de parede fina ，more heat shrink tubing custom
How to use this comparison
- Confirm the exact polymer grade, additive package and source document.
- Compare the stated test method, specimen thickness, conditioning and units.
- Evaluate tubing dimensions, processing history and the complete assembly.
- For product review, see tubulação médica de PTFE, medical FEP heat-shrink tubing e medical Pebax tubing.
