The values shown represent average experiences from numerous testing sources and are not intended to be specifications. These values will vary depending upon the individual compositions of the primers and topcoats and the systems used.
For further information on the properties of these coating systems, and examples of how they have led to the development of new products, increased production rates, and resultant cost savings, consult Chemours.
TRADEMARK DISCLAIMER: All Chemours Fluorplastic products below are sold with the Chemours™brand however Chemours may grant a Teflon™ trademark license for use with same. Unlicensed customers may refer to the chemours product only with the brand and product code as sold and depicted below. If you are interested in applying for our trademark licensing agreement contact Chemours.
Mechanical Properties
| |
|
|
PTFE |
FEP |
PFA |
ETFE |
| Specific Gravity |
D792 |
-- |
2.15 |
2.15 |
2.15 |
1.76 |
| Tensile Strength |
D1457
D1708
D638 |
MPa
(psi) |
21-34
(3,000-5,000) |
23
(3,400) |
25
(3,600) |
40-46
(5,800-6,700) |
| Elongation |
D1457
D1708
D638 |
% |
300-500 |
325 |
300 |
150-300 |
| Flexural Modulus |
D790 |
MPa
(psi) |
496
(72,000) |
586
(85,000) |
586
(85,000) |
1,172
(170,000) |
| Folding Endurance |
D2176 |
(MIT)
cycles |
>106 |
5-80 x 103 |
10-500 x 103 |
10-27 x 103 |
| Impact Strength |
D256 |
J/m
(ft·lb/in) |
189 (3.5) |
No Break |
No Break |
No Break |
| Hardness |
D2240 |
Shore D pencil |
50-65 HB |
56
HB |
60 |
72 |
| Coefficient of Friction, Dynamic |
D1894 |
-- |
0.05-0.10 |
0.08-0.3 |
-- |
0.3-0.4 |
Thermal Properties
|
|
|
|
|
|
|
| Melting Point |
D3418 |
°C
(°F) |
327
(621) |
260 (500) |
306
(582) |
267 (512) |
Cure
Temperature |
-- |
°C
(°F) |
379-429 (715-805) |
360-385 (680-725) |
379-399 (715-750) |
302-323 (575-615) |
| Flame Rating* |
UL94 |
-- |
V0 |
V0 |
V0 |
V0 |
| Limiting Oxygen Index |
D2863 |
% |
>95 |
>95 |
>95 |
30-36 |
| Heat of Combustion |
D240 |
MJ/kg
(Btu/lb) |
5.1
(2,200) |
5.1
(2,200) |
5.3
(2,300) |
13.7 (5,900) |
* Statements regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions.
Chemical Properties
|
|
|
|
|
|
|
| Chemical/Solvent Resistance |
D543 |
-- |
Excellent |
Excellent |
Excellent |
Excellent |
| Water Absorption, 24 h |
D570 |
% |
<0.01 |
<0.01 |
<0.03 |
<0.03 |
Salt Spray Resistance (1)
-on aluminum
-on steel |
B-117
|
Hours
Hours |
744+
192 |
744+
-- |
1000
-- |
1000
-- |
Detergent Resistance (2)
-on aluminum
-on grit-blasted aluminum
-on grit-blasted steel |
-- |
Hours
Hours
Hours |
264
624
24 |
744
600
480 |
--
--
-- |
--
--
-- |
| Weather Resistance |
Florida Exposure |
Years Unaffected |
20 |
20 |
10 |
15 |
Notes:
1. Salt Spray Resistance: 5% NaCl at 35°C/95°F, hours to failure
2. Detergent Resistance: hours to failure
Electrical Properties
|
|
|
|
|
|
|
| Dielectric Constant |
D150 |
1 MHz |
2.1 |
2.1 |
2.1 |
2.6 |
| Dielectic Strength* |
D149 |
V/µm |
18 |
53 |
80 |
79 |
| Dissipation Factor |
D150 |
1 MHz |
<0.0001 |
0.0006 |
0.0001 |
0.007 |
| Arc Resistance |
D495 |
sec |
>300 |
300 |
>180 |
122 |
| Volume Resistivity |
D257 |
ohm·cm |
>1018 |
>1018 |
>1018 |
>1017 |
| Surface Resistivity |
D257 |
ohm/sq |
>1018 |
>1016 |
>1017 |
>1015 |
* Dielectric Strength: 100 micrometers film
Vapor Transmission Rates
Vapor Transmission Rates of Teflon™ FEP Film, 25 µm (1 mil) thickness/per ASTM E-96 (modified)
Values measured on thicker specimens and converted to 25 µm (1 mil)
| |
|
|
| Acetic Acid |
35 |
0.41 |
| Acetone |
35 |
0.95 |
| Acetophenone |
25 |
0.50 |
| Benzene |
35 |
0.64 |
| Carbon Tetrachloride |
35 |
0.31 |
| Etyl Acetate |
35 |
0.76 |
| Hexane |
35 |
0.56 |
| Hydrochloric Acid, 20% |
25 |
<0.01 |
| Piperidine |
25 |
0.04 |
| Red Fuming Nitric Acid |
25 |
7.5-1.4 |
| Sodium Hydroxide, 50% |
25 |
<0.01 |
| Sulfuric Acid, 98% |
25 |
0.00001 |
| Water |
39.5 |
0.40 |
Note: All technical advice, application suggestions, recommendations and services are rendered by the seller gratis. They are based on technical data which the Seller believes to be reliable and are intended for use by persons having skill and know-how, at their own discretion and risk. Seller assumes no responsibility for results obtained or damages incurred from their use by Buyer in wholer or in part. Such technical advice, application suggestions, recommendations or services are not to be taken as a license to operate under, or intended to suggest infringement of, any existing patent.
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