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Physical Tests | Specifications | Natural 1103 | Natural 1177 | Natural 1187 | Neoprene 1501 |
Tensile Strength | Die C ASTM D412 | 3000 psi (min) | 2500 psi (min) | 2500 psi (min) | 2500 psi (min) |
Elongation at Rupture | ASTM D412 | 450% (min) | 450% (min) | 400% (min) | 400% (min) |
300% Modulus | ASTM D412 | 900 psi (min) | 900 psi (min) | – | 900 psi (min) |
Durometer Hardness, Shore Type A | ASTM D2240 | 60–70 | 45±5 | 50–60 | 60–70 |
Water Absorption | 70 Hrs. @ 212°F ASTM D471 | 10% change in volume (max) | 10% by weight (max) | 10% by volume (max) | 10% by weight (max) |
Compression Set | ASTM D395 Method B 22 Hrs/ @ 158°F | 30% (max) | 30% (max) | 25% (max) | 30% (max) |
Tensile Strength after Oxygen Bomb Aging | ASTM F572 | 80% (min) of tensile strength | 80% (min) of tensile strength | – | 80% (min) of tensile strength |
Low Temperature Brittleness | ASTM D2137 Method A, 9.3.2 | Non-Brittle after 3' @ -40 °C | Non-Brittle after 3' @ -40 °C | Non-Brittle after 3' @ -40 °C | Non-Brittle after 3' @ -25 °C |
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