Printable PDF| Property | ASTM Standard | Unit | PTFE | FEP | PFA | ETFE |
| Specific Gravity | D792 | 2.15 | 2.15 | 2.15 | 1.76 | |
| Tensile Strength | D1457, D1708, D638 | MPa | 21-35 | 23 | 25 | 40-47 |
| psi | 3,000-5,000 | 3,600 | 3,600 | 5,800-6,700 | ||
| Elongation | D1457, D1708, D638 | % | 300-500 | 300 | 300 | 150-300 |
| Flexural Modulus | D790 | MPa | 500 | 600 | 600 | 1,200 |
| psi | 72,000 | 85,000 | 85,000 | 170,000 | ||
| Folding Endurance | D2176 | (MIT) | >10 6 | 5-80 x 10 3 | 10-500 x 10 3 | 10-27 x 10 3 |
| cycles | ||||||
| Impact Strength | D256 | J/m | 189 | No break | No break | No break |
| ft.lb/in | 3.5 | |||||
| Hardness | D2240 | Shore D | 50-65 | 56 | 60 | 72 |
| pencil | HB | HB | ||||
| Abrasion Resistance | ||||||
| - Bell Abrasion (1) | g/µm | 85 | ||||
| - Sliding Arm (2) | mg | 7.9-9.7 | 11.1-15.2 | 13.4 | ||
| - Tabor Abrasion (3) | mg | 12 | 14.8 | |||
| Scratch Resistance | ||||||
| Scratch Master | ||||||
| - initial (4) | kg | 5.7-7.0 | 5.1-11.4 | |||
| - complete (5) | kg | 7.3-10.7 | 8.5-13.2 | |||
| Coefficient of Friction | D1894 | |||||
| - static | 0.12-0.15 | 0.12-0.20 | 0.2 > | 0.24-0.50 | ||
| - dynamic | 0.05-0.10 | 0.08-0.3 | 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, 1 kg load, 1,000 cycles, weight loss in mg
4. Scratch Master: initial = first sign of substrate
5. Scratch Master: complete = total removal of film
6. Salt Spray Resistance: 5% NaCl @ 35°C/95°F, hours to failure
7. Detergent Resistance: hours to failure
8. Dielectric Strength: 100 micrometers film
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, 1 kg load, 1,000 cycles, weight loss in mg
4. Scratch Master: initial = first sign of substrate
5. Scratch Master: complete = total removal of film
6. Salt Spray Resistance: 5% NaCl @ 35°C/95°F, hours to failure
7. Detergent Resistance: hours to failure
8. Dielectric Strength: 100 micrometers film
| Thermal Properties | ||||||
| Property | ASTM Standard | Unit | PTFE | FEP | PFA | ETFE |
| Melting Point | D3418 | °C | 327 | 260 | 305 | 267 |
| °F | 621 | 500 | 582 | 512 | ||
| Cure Temperature | °C | 380-430 | 360-390 | 380-400 | 300-325 | |
| °F | 715-805 | 680-735 | 715-750 | 575-615 | ||
| Max. Use Temperature | ||||||
| - Continuous | °C | 290 | 205 | 260 | 150 | |
| °F | 550 | 400 | 500 | 300 | ||
| - Intermittent | °C | 315 | 230 | 290 | 200 | |
| °F | 600 | 450 | 550 | 390 | ||
| Flame Rating** | V0 | V0 | V0 | V0 | ||
| Limiting Oxygen Index | D2863 | % | >95 | >95 | >95 | 30-36 |
| Heat of Combustion | D240 | MJ/kg | 5.1 | 5.1 | 5.3 | 13.7 |
| Btu/lb | 2,200 | 2,200 | 2,300 | 5,900 | ||
| hermal Conductivity | Btu.in/h.ft2.°F | 1.7 | 1.4 | 1.3 | 1.65 | |
| W/m-k | 0.25 | 0.20 | 0.19 | 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 | PTFE | FEP | PFA | ETFE |
| Property Chemical/Solvent Resistance | D543 | Excellent | Excellent | Excellent | Excellent | |
| Water Absorption, 24 h | D570 | % | < 0.01 | < 0.01 | < 0.01 | < 0.03 |
| Salt Spray Resistance (6) | B-117 | |||||
| - on aluminum | Hours | 744+ | 744+ | 1000 | 1000 | |
| - on steel | Hours | 192 | ||||
| Detergent Resistance (7) | ||||||
| - on aluminum | Hours | 264 | 744 | |||
| - on grit-blasted aluminum | Hours | 624 | 600 | |||
| - on grit-blasted steel | Hours | 24 | 480 | |||
| Weather Resistance | Florida Exposure | Years Unaffected | 20 | 20 | 10 | 15 |
| Electrical Properties | ||||||
| Property | ASTM Standard | Unit | PTFE | FEP | PFA | ETFE |
| Dielectric Constant | D150 | 1 MHz | 2.1 | 2.1 | 2.1 | 2.6 |
| Dielectric Strenght (8) | 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 |
* this data reproduced from published Dupont literature H-75151