Applications
Casting in silicone moulds : transparent prototype parts up to 50 mm in thickness : crystal glass like parts, fashion, jewellery stained glass repair, art and decoration parts.
Properties
- High transparency (water clear)
- Easy polishing
- Good UV resistance
- Low shrinkage
Physical Properties
| Composition | UPX 5210 ISOCYANATE | UPX 5210 POLYOL | UPX 5210-S POLYOL | MIXED | |
|---|---|---|---|---|---|
| Mix ratio by weight | 150 | 100 | 100 | ||
| Aspect | liquid | liquid | liquid | liquid | |
| Colour | transparent | Light blue – purple | Light blue – purple | Transparent | |
| Viscosity at 23°C (mPa.s) | BROOKFIELD LVT | 100 – 150 | 600 – 800 | 600 – 800 | 500 – 650 |
| Specific gravity at 23°C Specific gravity of cured product at 23°C | 1.06 – | 1.01 – | 1.01 – | -1.10 | |
| Pot life at 20 – 25°C on 100 g (min) | 10 | 20 |
Mechanical Properties at 23°C
| UPX 5210 | UPX 5210-S | ||
|---|---|---|---|
| Hardness | Shore D | 83 | |
| Tensile strength | MPa | 65 – 70 | |
| Flexural strength | MPa | 90 – 95 | |
| Flexural modulus | MPa | 2000 – 2200 | |
| Elongation at break | % | 15 – 20 | |
| Impact strength (IZOT) | J/m | 60 – 70 | |
Thermal and specific properties
| Curing condition | UPX 5210 | UPX 5210-S | |||
|---|---|---|---|---|---|
| Heat resistance 1 (heat sag) | 1.5 hour at 70°C | Temperature/ hour/changes | 70°C/1H/0mm | ||
| Heat resistance 2 (heat sag) | 2 hours at 100°C | Temperature/ hour/changes | 90°C/1H/0mm | ||
| Glass transition temperature (Tg) | – | °C | 80 | ||
| Linear shrinkage | – | % | 0.4 – 0.45 | ||
| Demoulding time (2 – 3mm) at 65 – 70°C | – | min | 60 – 90 | 90 – 120 | |
Contact us to discuss your high transparent and UV resistant project and discover how vacuum casting can meet your needs.
Our vacuum casting services deliver durable prototypes and low-volume parts.