| Physical properties | Test methods | Minimum value |
| Water absorption | ASTM D-570 | 15% - 20% |
| Tear resistance | ASTM D-624 | 300 psi |
| Specific gravity | ASTM D-792 | 1.38 ± 0.05 |
| Hardness shore A15 | ASTM D-2240 | 79 ± 3 |
| Tensile strength | ASTM D-638 Type IV | 2000 psi |
| Ultimate elongation | ASTM D-638 Type IV | 360% |
| 100% modulus | ASTM D-638 Type IV | 725 psi |
| Low temperature brittleness (Tb) °F (°C) | ASTM D-746 | -35 (-37) passed |
| Stiffness in Flexure | ASTM D-747 | 600 psi |
| Ozone Resistance | ASTM D-1149 | No Failure |
| Accelerated Extraction, CRD-572 | ||
| Tensile | CDR - C- 572 | 1850 psi |
| Elongation | CDR - C- 572 | 350% |
| Effect of Alkali, CRD-572 | ||
| Weight Change | CRD-572 | + 0.25% - 0.1% |
| Change in Hardness Shore A | ASTM D-2240 | ± 5 points |