Weight casting PU resin system
It is applied to the manufacture of large tooling and dies, with low heat release and low shrinkage. Such as sheet metal forming or large aircraft tooling applications. There are two different options: epoxy system sc550 and Pu system MC30.
Typical product: MC30 casting thickness up to 500mm (polyurethane resin system)
| Main features | application |
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| ●Very low viscosity | ●Environment friendly and odorless | ●Yin Yang mold reproduction |
| ●Low shrinkage | ●Low exothermic | ●General mold or model |
| ●Good operability | ●Easy to process after curing | ●Large tooling or tire mold |
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| MC30 | ISO1 | No filler |
filler |
| colour |
| Off white | Light yellow |
| white
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| mixture ratio |
| 100 | 100 |
| 200-300 |
| density（20 °C） | g/cm3 | 1 | 1.1 | 1.05 | 1.6-1.7 |
viscosity（25
°C） | mPas | 900 | 100 |
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Mixed viscosity（25
°C） | mPas |
|
| 400-450 | 3500-5000 |
| Operation time (minutes) | room temperature |
|
| 30-40 | 40-60 |
| Demoulding time (hours) | room temperature | According to dosage and thickness |
| 12-16 | 16-24 |
| Physical properties |
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| No filler | filler F |
| hardness | Shore D | DIN 53505 | 80 | 85 |
| Color (colorable) |
|
| Off white | Off white |
| Temperature resistance | °C | HDT | 80 | 80 |
| tensile strength | MPa | DIN 53455 | 39 | 10 |
| Tensile elongation | % | DIN 53455 | 2 | 6 |
| bending strength | MPa | DIN 53452 | 65 | 33 |
| Bending elongation | % | DIN 53452 | 5 | 1.2 |
| impact strength | KJ/m2 | DIN 51230 | 5 | 3 |
| compressive strength | MPa | DIN 53454 | - | 90 |
| Linear shrinkage | % | 500 x 50 x 25 mm | - | 0.05 |
