GRAUTS materials
GRAUTS HPP+10%GF
A high-performance polyolefin with 10 % special glass fibre for extrusion 3D printing. The grade combines low density, low shrinkage, high impact strength and good strength across the fibre direction. The material is widely used in dentistry.
2,070 MPa
Tensile modulus, ISO 527
135 °C
Heat deflection temperature at 0.45 MPa, ISO 75
12 %
Elongation at break, ISO 527
0.98 g/cm³
Density, ISO 1183
Key features
Minimal shrinkage; good bed adhesion; high impact strength; resistance to hydrolysis and most acids and alkalis; good interlayer adhesion.
Confirmed properties from the technical data sheet
| Property | Test result | Test method |
|---|---|---|
| Density, g/cm³ | 0.98 | ISO 1183 |
| Water absorption in 24 hours / at saturation, % | 0.03 / 0.1 | ISO 62* |
| Processing shrinkage, longitudinal / transverse, % | 0.1 / 0.3 | ISO 294-4* |
| Warpage of a 150 × 100 × 2 mm plate, mm | 8.04 | GRAUTS in-house method |
| Notched Izod impact strength at 23 °C, kJ/m² | 31 | ISO 180/A |
| Notched Charpy impact strength at 23 °C, kJ/m² | 31 | ISO 179-1/1eA |
| Unnotched Charpy impact strength at 23 °C, kJ/m² | 62 | ISO 179-1/1eU |
| Tensile modulus, MPa | 2070 | ISO 527-1/-2 |
| Stress at yield / at break, MPa | 38 / 23 | ISO 527-1/-2 |
| Elongation at break, % | 12 | ISO 527-1/-2 |
| Vicat softening temperature, 10 N / 50 N, °C | 140 / 74 | ISO 306 |
| Heat deflection temperature at 0.45 / 1.81 MPa, °C | 135 / 77 | ISO 75-1/-2 |
| Spiral flow at 400 / 1000 / 1600 bar and 285 °C, cm | 12 / 27 / 39 | GRAUTS in-house method |
Application per the technical data sheet
For precise functional parts, housings and dental components that need a balance between stiffness, strength and ease of processing.
Advanced materials for additive manufacturing
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