GRAUTS materials
GRAUTS HPP+15%GF+FR
An impact-resistant high-performance polyolefin with 15 % special glass fibre, halogen-free flame retardant and UV stabilisation. Flammability class V0 is confirmed for thicknesses of 1.6 and 3.2 mm. Typical uses — electrical housings, power tools and transport systems.
3,220 MPa
Tensile modulus, ISO 527
140 °C
Heat deflection temperature at 0.45 MPa, ISO 75
8 %
Elongation at break, ISO 527
1.19 g/cm³
Density, ISO 1183
Key features
Halogen-free flame retardant; class V0 at 1.6 mm; impact resistance; UV stabilisation; a wear-resistant nozzle is recommended.
Confirmed properties from the technical data sheet
| Property | Test result | Test method |
|---|---|---|
| Density, g/cm³ | 1.19 | ISO 1183 |
| Processing shrinkage, longitudinal / transverse, % | 0.1 / 0.5 | ISO 294-4* |
| Warpage of a 150 × 100 × 2 mm plate, mm | 3.14 | GRAUTS in-house method |
| Notched Izod impact strength at 23 °C, kJ/m² | 16 | ISO 180/A |
| Notched Charpy impact strength at 23 °C, kJ/m² | 16 | ISO 179-1/1eA |
| Unnotched Charpy impact strength at 23 °C, kJ/m² | 42 | ISO 179-1/1eU |
| Tensile modulus, MPa | 3220 | ISO 527-1/-2 |
| Stress at yield / at break, MPa | 43 / 42 | ISO 527-1/-2 |
| Elongation at break, % | 8 | ISO 527-1/-2 |
| Vicat softening temperature, first row, °C | 149 | ISO 306 |
| Vicat softening temperature, second row, °C | 82 | ISO 306 |
| Heat deflection temperature at 0.45 / 1.81 MPa, °C | 140 / 91 | ISO 75-1/-2 |
| Flammability class at 0.4 / 0.8 / 1.6 / 3.2 mm | — / — / V0 / V0 | UL94* |
| Spiral flow at 400 / 1000 / 1600 bar and 225 °C, cm | 8 / 20 / 31 | GRAUTS in-house method |
Application per the technical data sheet
For more heavily loaded structural parts, fasteners, tooling and equipment components. The main advantage is increased stiffness and dimensional stability under mechanical and thermal loads. Developed specially for the automotive industry, mainly for printing vehicle interior trim.
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