Polyurethane resin for vacuum casting.Mercury free product suitable with European directive: 2011/65/EC, 2002/96/EC, 2000/53/EC and 2000/11/EC. High thermal resistance (HdT : 130°C). Easy to cast. Low agressivity on silicon moulds. Good chemical resistance.
| PR700 Polyol ST 109000 | PR700 Isocyanate SH 000401 | PR 700ST 109401 | |
| Aspect – Color | Black liquid | Transparent liquid colorless | Black liquid |
| Viscosity Brookfield LVT (mPa.s) According to MO-051 | 130 | 1200 | 600 |
| Density at 25°C
According to MO-032 |
1.13 | 1.15 | 1.14 |
Process data
| PR700 PolyolST 109000 | PR700 IsocyanateSH 000401 | MixingST 109401 | |
| Mixing ratio by weight | 80 | 100 | |
| Mixing ratio by volume | 81,5 | 100 | |
| Pot life 200g at 25°C (min.)
According to MO-062 |
6 – 7 | ||
| Demoulding time at 70°C (min.)
According to MO-116 |
Approx. 45 |
Average mechanical and thermal properties of the solid piece
| Test methode | |||
| Hardness Shore D1 (1) | ISO 868-2003 | 87 | |
| Transition glass (Tg) (1) | (°C) | DSC Perkin Elmer | > 130 |
| Heat deflection temperature (HdT) (1) | (°C) | ISO 75 Ae:2001 | 130 |
| Flexural modulus (1) | (MPa) | ISO 178 : 2001 | 2300 |
| Maximal flexural strength (1) | (MPa) | ISO 178 : 2001 | 80 |
| Tensile modulus of elasticity (1) | (MPa) | ISO 527 : 1993 | 1800 |
| Elongation at break (1) | (%) | ISO 527 : 1993 | 13 |
| Tensile strength (1) | (MPa) | ISO 527 : 1993 | 60 |
| Charpy impact (without slight cut) (1) | (KJ.m-2) | ISO 179/1D : 1994 | 60 |
| Linear shrinkage (3 mm thickness) | (mm/m) | – | 2 |
Specification: PVC-PRII-PR700
|
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