Bulk RTV 2 Tin Cure Silicone Rubber Liquid For Plaster Cornice Molds
RTV -2 Good Strength Industrial Liquid Silicon Rubber Silicone for Plaster Cornice Mold
Description of Tin Cure Silicone Rubber
HN-620 A/B is a two-component liquid silicone material. Two components are mixed in a ratio of 100:2. This product is cured at room temperature.
Application of Tin Cure Silicone Rubber
HN-620 A/B Industrial-grade liquid silicone rubber for manufacturing construction molds is suitable for the molding and reproduction of large-scale stones, gypsum, cement parts, cultural stones, artificial stones, Roman columns, stone carvings and other furniture, construction and decoration products; it can also be used for
Technical parameter of Tin Cure Silicone Rubber
| Model | HN-640AB |
| Feature | easy foaming |
| Viscosity (cs) | 170000 |
| Gravity ( G/cm 3 ) | 1.06 |
| Hardness(A°) | 20 |
| Strength( MPa) | 3.1-3.6 |
| Tear Strength (kN/m ) | 19.8-24.3 |
| Elongation(%) | 600-720 |
| Linear Shrinkage(%) | ≤0.2 |
| Curing Agent Addition Ratio(%) | 2-3% |
| Operating Time( mins ) | 30-40 |
| Curing Time( hours ) | 3-4 |
Feature of Tin Cure Silicone Rubber
1. Strong tear resistance, high and low temperature resistance, acid and alkali resistance, and aging resistance;
Compared with others, Hannast molding silicone has better flexibility and stronger tear resistance, and the silicone mold has a longer service life and can be reused many times.
Low shrinkage and precise reproduction
The shrinkage rate is negligible, ≤2‰, enabling the reproduction of the finest and most complex details.
Good Fluidity
Liquid silicone rubber has good fluidity, self-leveling, easy-release bubbles,and easy pouring to help complete the mold.


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