Properties | Tefzel ETFE | Natural Rubber | Hyalon | Neoprene | Butyl | Silicone | SBR | Polyurethane |
1. Abrasion Resistance | Good | Excellent | Good | Excellent | Fair | Fair | Good | Excellent |
2. Heat Resistance | Excellent | Fair | Excellent | Good | Good | Excellent | Fair | Good |
3. Weatherability | Good | Fair | Excellent | Good | Excellent | Excellent | Fair | Good |
4. Flame Retardancy | Excellent | Poor | Good | Good | Poor | Good | Poor | Good |
5. Water Resistance | Excellent | Good | Good | Excellent | Excellent | Excellent | Good | Good |
6. Acid-Resistance | Excellent | Fair | Excellent | Good | Excellent | Good | Fair | Fair |
7. Alkail Resistance | Excellent | Fair | Excellent | Good | Excellent | Good | Fair | Fair |
8. Aliphatic Hydro Resis | Excellent | Poor | Fair | Good | Poor | Poor | Poor | Good |
9. Aromatic Hydro Resis | Excellent | Poor | Fair | Fair | Poor | Poor | Poor | Poor |
Properties | Tefzel ETFE | Natural Rubber | Hyalon | Neoprene | Butyl | Silicone | SBR | Polyurethane |
1. Specific Gravity | 1.70-1.86 | 1.3-1.7 | 1.35-1.7 | 1.23-1.65 | 0.92-1.50 | 1.1-1.6 | 0.94 | 1.30 |
2. Tensile Strength | 6500 | 1500-4000 | 1200-2200 | 1200-2700 | 500-1500 | 1000 | >3000 | >3500 |
3. Elongation,% | 200 | 300-700 | 300-600 | 300-700 | 300-800 | 100-500 | >450 | 540-750 |
4. Volume Resistivity, ohm-cm | ||||||||
5. Dielectric Strength, volts mil | 500 | – | 500 | 600 | 600 | 100-700 | 420-520 | 330-630 |
6. Dielectric Constant @60Hz | 2.6 | – | – | – | – | – | 2.5-3.4 | 5.4-7.6 |
7. Dielectric Constant @1kHz | 2.6 | 3.3-5.0 | 9.0-11.0 | 5.0-7.0 | 2.1-2.4 | 3.0-3.5 | 2.9 | 5.6-7.6 |
8. Power Factor (Dissipation) @60Hz | – | – | – | – | – | – | 0.002-0.003 | 0.015-0.046 |
9.Power Factor (Dissipation) @1kHz | 0.0006 | 0.0023- 0.0030 | 0.05-0.07 | 3.5 | 0.0030 | 0.001-0.0010 | 0.0032 | 0.043-0.060 |