ALWA SIL CSH15 & CSH19
Silicone rubber ALWA SIL CSH 15 and CSH 19 are silicone impression materials. These materials have extremely high mechanical values. In addition, they are very fast to handle and very easy to handle as well.
The two-component silicone rubbers cure at room temperature. After mixing the two components, a low viscosity liquid develops, which crosslinks to a resistant and rubber-elastic material. During the crosslinking, no exothermic heat is developed. When 1 – 3 % thixotropic agent per component is added, a spreadable mixture is obtained.
Area of application
- Flexible casting moulds
- Copy moulds
- Moulds with undercuts
- Polyurethane casting moulds
- Concrete casting moulds
Productvideo ALWA SIL CSH15 & CSH19
Technical data at RT:
| Characteristic | CSH 15 | CSH 19 |
|---|---|---|
| Silicone type | Condensation | Condensation |
| Hardness (shore A) | ~ 14 – 16 | ~ 19 – 21 |
| Mixing ratio (%) | 100:3 | 100:3 |
| Colour | Translucent, red, blue, green | White, red, blue, green |
| Pot life at 22 °C (min.) | ~ 40 | ~ 40 |
| Time to demoulding at 25 °C (hrs.) | ~ 4 – 5 | ~ 4 – 5 |
| Viscosity (mPa s) | ~ 15.000 | ~ 15.000 |
| Tear-strength (kN/m) | ~ 18 | ~ 22 |
| Tensile strength (MPa) | ~ 3,8 | ~ 4 |
| Elongation (%) | ~ 500 | ~ 450 |
| Shrinkage (%) | ~ 0,2 | ~ 0,2 |
| Temperature resistance (°C) | ~ 180 | ~ 180 |