Sealing systems
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PU-D57
(U203-D54)
A modified polyurethane with reduced hardness, resistant to hydrolysis. It can operate in an environment of mineral oils and water.
| Norm | Unit | Value | |
|---|---|---|---|
| Density | DIN 53479 | g/cm³ | 1,13 |
| Hardness at 20 °C | DIN 53505 | Shore A | 54 ±2 |
| Modulus 100 | DIN 53504 | N/mm² | >18 |
| Yield strength | DIN 53504 | N/mm² | >30 |
| Elongation at break | DIN 53504 | % | >330 |
| Tear strength | DIN 53515 | KN/m | 125 |
| Decompression | DIN 53512 | % | 42 |
| Compression test* | DIN 53517 | % | 32 |
| Hardness at -5°C | DIN 53505 | Shore D | 57 |
| Hardness at +80°C | DIN 53505 | Shore D | 52 |
| Minimum operation temperature | °C | -30 | |
| Maximum operation temperature | °C | +90 |
