
Description
Hei-Cast 8150 is a urethane resin specifically designed for vacuum casting, offering enhanced properties beyond typical urethane materials.
Its well-balanced physical properties, rapid curing, and high dimensional stability make it ideal for manufacturing durable prototypes and testing the strength of injection-molded parts.
With its practical strength, Hei-Cast 8150 is suitable for creating small-lot parts, making it a versatile choice for low-volume production with high-performance demands.
Physical Properties
| Item | Value | Remarks | |
|---|---|---|---|
| Hardness | Shore D | 84 | Wallace Hardness Tester |
| Tensile Strength | MPa | 73 | JIS K-7113 |
| Elongation | % | 16 | |
| Bending strength | MPa | 78 | JIS K-7171 |
| Young’s modulus in flexure | MPa | 1790 | |
| Impact strength | kJ/m2 | 12 | JIS K-7110 Izod V Notch |
| Shrinkage | % | 0.3 | Inhouse specification |
| Deflection temp. under load | ℃ | 100 | JIS K-7191(1.80 MPa) |
| Coefficient of thermal expansion | /℃ | 6×10-5 | JIS K-6911 |
| Difficult-inflammability | UL-94 | HB approved product | UL-94 test in our laboratory |
| Demold Time | Minute | 45 ~ 60 | Mold temp. :over 60℃ |
Physical properties vs. Temperature
| Temperature℃ | Bending strength (MPa) | Young’s modulus in flexture(MPa) | Impact strength (kJ/m2) |
|---|---|---|---|
| -20 | 112 | 2060 | 7.8 |
| ±0 | 98 | 1840 | 9.1 |
| +20 | 86 | 1700 | 8.6 |
| +40 | 74 | 1650 | 9.8 |
| +60 | 59 | 1490 | 8.3 |
| +80 | 36 | 1250 | 9.5 |
Electrical properties

Contact us to discuss your project and discover how vacuum casting can meet your needs.
Our vacuum casting services deliver durable prototypes and low-volume parts.
