The VACUUM CASTING (VC) of silicone moulds is useful in making individual prototypes, small quantity prototype batches and even short production amounts using polyurethane resins with a wide choice of physical properties.
The wide spectrum of polyurethanes available helps to adjust model properties to the required mechanical properties of future injected thermoplastics.
According to mechanical properties, our choice of resins can be used as an equivalent substitute of the following:
- PA/PP/ABS,
- PS/ABS,
- PP resistant to high temperatures,
- PA/POM,
- Elastomers with hardness from 55A to 75A,
- Highly-transparent PMMA / PC.
Materials:
Silicone:
ALPINA Koraform A 42 – Silicone
Polyurethane resins:
SYNTHE EHP – 55D elastomer – equivalent to rubber,
SYNTHENE PRC 1708 CLEAR – substitute for transparent materials (acryl/glass),
SIKA Breesin VG280 – substitute for ABS and PVC,
SIKA Breesin VG240 – substitute for ABS.
Epoxide compositions for power and electrical engineering:
ARLALDIT CW229-3
HUNSTAMN
VANTICO