ZA 22 MOULD is a bi-component addition cured RTV silicone rubber which vulcanizes at room temperature. Because of its considerable fluidity, it is recommended for the duplication of models with many undercuts.
Main application sectors
- Mouldmaking and model-making due to its considerable precision in reproduction, high dimensional stability and high mechanical resistance
- Artistic ceramics due to its high dimensional stability, considerable fluidity and good mechanical resistance
- Concrete moulding
Chemical and physical characteristics
| |
Metric system |
USA system |
| Mixing ratio |
1 : 1 |
- |
| Viscosity of the mix pre-catalisation |
4000 ± 300 cP |
- |
| Mixing time at 23 °C (73 °F) |
1' |
- |
| Working time at 23 °C (73 °F) |
14’ - 17’ |
- |
| Setting time at 23 °C (73 °F) |
1 h |
- |
| Hardness Shore-A after 24 hours |
21 ± 2 ShA |
- |
| Tensile strenght |
4.0 ± 0.2 N/mm² |
581 ± 29 psi |
| Elongation at break |
380 ± 20% |
- |
| Tear resistance (Die B) |
20 ± 1 N/mm |
113 ± 6 ppi |
| Tear resistance (Die C) |
12 ± 1 N/mm |
68 ± 6 ppi |