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Formulated of copolymers of ether or ester based urethanes, this material is used in a wide application of seals, wipers, back-up rings, cushions, bumpers, and a myriad of other uses. Highly resistant to oil swell, ozone, oxidation and abrasion, it also has excellent cut resistance. Highly resilient, urethanes also have high tensile strength and elongation properties. Urethanes remain an excellent choice in hydraulic systems using petroleum based fluids. Most urethane seals remain flexible and efficient in temperatures ranging from -65° F to +200° F with some able to withstand intermittent temperatures up to +300° F.
Data Sheet for HPU (Thermoplastic Polyurethane) |
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| Property | Specification | Value |
|---|---|---|
| Hardness | ISO 868 | 95 +/- 2 shore A |
| Hardness | ISO 868 | 48 +/-3 shore D |
| Modulus 100% | DIN 53 504 | Greater than or Equal to 2175 psi |
| Modulus 100% | DIN 53 504 | Greater than or Equal to 4160 psi |
| Tensile strength | DIN 53 504 | Greater than or Equal to 7250 psi |
| Elongation at break | DIN 53 504 | Greater than or Equal to 350% |
| Tear Strength | DIN 53 ISO 34-1 Methode B | Greater than or Equal to 570 lbf/inch |
| Specific Gravity | ISO 1183 | 1.2 g/cm3 |
| Abrasion | DIN 53 516 | 17 mm3 |
| Compression set | ISO 815 | Less than or Equal to 27% |
| 70 deg. C / 24h @ 25% deflection | ||
| Compression Set | ISO 815 | Less than or Equal to 33% |
| 100 deg. C / 24h @ 25% deflection | ||
| Min. Service Temperature | -4 deg. F | |
| Max. Service Temperature | 240 deg. F | |
MSDS SSP HPU SHEET