GRAUTS materials
GRAUTS HPP-T, natural
A high-performance polyolefin with 30 % mineral filler — talc. The material is aimed at parts with low shrinkage and warpage, a good surface, high impact strength and reliable interlayer adhesion. The data sheet also allows rigid and soft areas to be joined. The material is widely used in dentistry.
1,510 MPa
Tensile modulus, ISO 527
85 °C
Heat deflection temperature at 0.45 MPa, ISO 75
390 %
Elongation at break, ISO 527
1.13 g/cm³
Density, ISO 1183
Key features
Low shrinkage; good bed adhesion; high impact strength; resistance to hydrolysis and most acids and alkalis; the ability to combine rigid and soft zones.
Confirmed properties from the technical data sheet
| Property | Test result | Test method |
|---|---|---|
| Density, g/cm³ | 1.13 | ISO 1183 |
| Processing shrinkage, longitudinal / transverse, % | 0.3 / 0.4 | ISO 294-4* |
| Warpage of a 150 × 100 × 2 mm plate, mm | 1.09 | GRAUTS in-house method |
| Notched Izod impact strength at 23 °C, kJ/m² | 17.4 | ISO 180/A |
| Notched Charpy impact strength at 23 °C, kJ/m² | 15 | ISO 179-1/1eA |
| Unnotched Charpy impact strength at 23 °C | no break | ISO 179-1/1eU |
| Tensile modulus, MPa | 1510 | ISO 527-1/-2 |
| Stress at yield, MPa | 23 | ISO 527-1/-2 |
| Stress at break, MPa | 17 | ISO 527-1/-2 |
| Elongation at break, % | 390 | ISO 527-1/-2 |
| Vicat softening temperature, 50 K/h, 10 N, °C | 131 | ISO 306 |
| Vicat softening temperature, 50 K/h, 50 N, °C | 63 | ISO 306 |
| Heat deflection temperature at 0.45 MPa, °C | 85 | ISO 75-1/-2 |
| Heat deflection temperature at 1.81 MPa, °C | 50 | ISO 75-1/-2 |
| Spiral flow at 400 / 1000 / 1600 bar and 240 °C, cm | 11 / 25 / 37 | GRAUTS in-house method |
Application per the technical data sheet
For parts where wear resistance, shape stability and exposure to increased loads matter; suitable for technical products and dental applications.
Advanced materials for additive manufacturing
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