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EPDM rubber 50 Shore A is a flexible, medium-soft elastomer with excellent resistance to weather, ozone, UV and water. It offers good sealing, vibration dampening and durability across a wide temperature range.
Typical Physical Properties
| Property | Test Method | EPDM Rubber 50A |
|---|---|---|
| Colour | – | Black |
| Specific Gravity | ASTM D297 | 1.45 ± 0.05 |
| Hardness (Shore A) | ASTM D2240 | 50 ± 5 |
| Tensile Strength (kg/cm<sup>2</sup>) | ASTM D412 | 40 |
| Elongation at Break (MIN) | ASTM D412 | 200% |
| Compression Set (70°C/24hrs/25% Set) (Max) | ASTM D395<br>Method B | 50% |
| Tear Resistance (Angular) min | ASTM D624 | 18 kg/cm |
Electrical and Mechanical Information
| Property | Test Method | EPDM Rubber 50A |
|---|---|---|
| Heat Ageing (72 Hrs. at 70°C)<br>- Hardness (PTS)<br>- Tensile Strength (%)<br>- Elongation at Break (%) | <br>ASTM D573 | <br>± 5 (Max)<br>± 20 (Max)<br>± 30 (Max) |
| Volume Swell: at 70°C for 72 hrs/in<br>- IRM OIL NO.1<br>- IRM OIL NO.2<br>- IRM OIL NO.3 | <br>ASTM D471 | <br>Not Recommended |
| Polymer Content (EPDM) | – | 10% |
| Chemical Resistance<br>- Ozone<br>- Dilute Acids & Bases<br>- Concentrates Acids & Bases<br>- Oils<br>- Solvents | <br>ASTM D1149 | <br>Fair<br>Fair<br>Not Recommended<br>Not Recommended<br>Not Recommended |
| Temperature Range | – | -30°C to 90°C |
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