GRAUTS materials
GRAUTS HPP 52ShD
An unfilled high-performance polyolefin-type polymer with a hardness of 52 Shore D. It features high impact strength, a small difference between longitudinal and transverse shrinkage, good interlayer adhesion and low sensitivity to moisture. The technical data sheet describes it as a lightweight alternative to thermoplastic polyurethane for a range of tasks.
676 MPa
Tensile modulus, ISO 527
66 °C
Heat deflection temperature at 0.45 MPa, ISO 75
520 %
Elongation at break, ISO 527
0.91 g/cm³
Density, ISO 1183
Key features
Low shrinkage and warpage; resistance to hydrolysis and most acids and alkalis; good wear resistance; indicative use temperature of up to 100 °C without mechanical load.
Confirmed properties from the technical data sheet
| Property | Test result | Test method |
|---|---|---|
| Density, g/cm³ | 0.91 | ISO 1183 |
| Water absorption at saturation, % | 0.1 | ISO 62* |
| Processing shrinkage, longitudinal / transverse, % | 0.5 / 0.6 | ISO 294-4* |
| Notched Izod impact strength at 23 °C, kJ/m² | 63 | ISO 180/A |
| Notched Charpy impact strength at 23 °C | no break | ISO 179-1/1eA |
| Unnotched Charpy impact strength at 23 °C | no break | ISO 179-1/1eU |
| Tensile modulus, MPa | 676 | ISO 527-1/-2 |
| Stress at yield, MPa | 17 | ISO 527-1/-2 |
| Stress at break, MPa | 28 | ISO 527-1/-2 |
| Elongation at break, % | 520 | ISO 527-1/-2 |
| Heat deflection temperature at 0.45 MPa, °C | 66 | ISO 75-1/-2 |
| Heat deflection temperature at 1.81 MPa, °C | 44 | ISO 75-1/-2 |
| Spiral flow at 400 / 1000 / 1600 bar and 240 °C, cm | 12 / 27 / 40 | GRAUTS in-house method |
Application per the technical data sheet
For flexible functional parts, seals, protective elements, damping components and products with complex geometry. The main advantage is the combination of elasticity, wear resistance and resistance to repeated deformation.
Advanced materials for additive manufacturing
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