| MECHANICAL PROPERTIES: |
| The values shown in this table represent average experiences from numerous testing sources and are not intended to be specifications. These values will vary depending on the individual compositions of the primers and topcoats and the systems used. |
| PROPERTY |
ASTM STANDARD |
UNIT |
Teflon™ PTFE |
Teflon™ FEP |
Teflon™ PFA |
Teflon™ ETFE |
| Specific Gravity |
D792 | --- |
2.15 |
2.15 |
2.15 |
1.76 |
Tensile Strength
|
D792
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 |
Abrasion Resistance:
-Bell Abrasion (1)
-Sliding Arm (2)
-Tabor Abrasion (3) |
--- |
g/µm
mg
mg |
85
7.9-9.7
12 |
---
11.1-15.2
14.8 |
---
---
--- |
---
13.4
--- |
Scratch Resistance
scratch master
-Initial (4)
-Complete (5) |
--- |
kg
kg |
5.7-7.0
7.3-10.7 |
5.1-11.4
8.5-13.2 |
---
--- |
---
--- |
Coefficientof Friction
-static
-dynamic |
D1894 |
--- |
0.12-0.15
0.05-0.10 |
0.12-0.20
0.08-0.3 |
0.2
--- |
0.24-0.50
0.3-0.4 |
| Contact Angle (water) |
--- | degree | 104-111 | 95-105 | 104-111 | 90-100 |
Notes:
1. Bell Abrasion Tester: grams abrasive/micrometers
2. Sliding Arm Test: 1,000 Cycles, 500 gr load, 400 Emery
paper, 35.5 sq. cm surface
3. Tabor Abrasion: Cs 17 wheel, 1kg load, 1,000 cycles, weight loss in mg
4. Scratch Master: initial=first sign of substrate
5. Scratch Master: complete=total removal of film |
| THERMAL PROPERTIES: |
| PROPERTY |
ASTM STANDARD |
UNIT |
Teflon™ PTFE |
Teflon™ FEP |
Teflon™ PFA |
Teflon™ ETFE |
| 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) |
Max. Use
Temperature
-Continuous
-Intermittent
|
--- |
°C
(°F)
°C
(°F) |
260
(500)
316
(600) |
204
(400)
232
(450) |
260
(500)
288
(550) |
149
(300)
199
(390) |
| Flame Rating** |
UL94 |
--- |
VO |
VO |
VO |
VO |
| Limited 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 |
| Thermal Conductivity |
--- |
Btu in/h ft2 °F
(W/m k) |
1.7
(0.25) |
1.4
(0.20) |
1.3
(0.19) |
1.65
(0.24) |
**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: |
| PROPERTY |
ASTM STANDARD |
UNIT |
Teflon™ PTFE |
Teflon™ FEP |
Teflon™ PFA |
Teflon™ ETFE |
| Chemical/Solvent Resistance | D543 | --- | Excellent | Excellent | Excellent | Excellent |
| Water Absorption, 24h | D570 | % | <0.01 | <0.01 | <0.03 | <0.03 |
Salt Spray Resistance (2)
-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 |
---
---
--- |
---
---
--- |
Notes:
1. Salt Spay Resistance: 5% NaCl at 35°C/95°F, hours to failure
2. Detergent Resistance: hours to failure |
| ELECTRICAL PROPERTIES: |
| PROPERTY |
ASTM STANDARD |
UNIT |
Teflon™ PTFE |
Teflon™ FEP |
Teflon™ PFA |
Teflon™ ETFE |
| Dielectric Constant | D150 | 1 MHz | 2.1 | 2.1 | 2.1 | 2.6 |
| Dielectric 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 | |