Milky White Soft RTV2 LSR Liquid Silicone Rubber For Concrete Molds Making
Milky White Soft RTV2 Liquid Silicone Rubber Suitable For Concrete Mold Making
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-620AB |
| Feature | high tear resistance |
| 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.
Non-Toxic & No Odor
Made of premium silicone material, liquid silicone rubber will not produce unpleasant odors, allowing you to use more assured
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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