Liquid Silicone Rubber For Mold Making RTV Silicone Material Mold For Gypsum Sculpture Plaster Silicone Rubber Manufacturer
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.
Component A is a flowable liquid silicone, while Component B is a curing agent (vulcanizing agent) that can be quickly formed by mixing the two.

Application of Tin Cure Silicone Rubber
① Molds for plaster, cement, and concrete products (the most classic application)
② Molds for wax modeling/investment casting
③ Molds for low-melting-point alloy casting
④ Molds for resin crafts and polyester resin components
⑤ Molds for soap and candle making
⑥ Prototype making and mold casting


Feature of Tin Cure Silicone Rubber
1. Strong tear resistance, high and low temperature resistance, acid and alkali resistance, and aging resistance;
| Model | HN-620AB | HN-630AB |
| Color | white/translucent | white/translucent |
| Viscosity (cs) | 18000-25000 | 18000-25000 |
| Gravity ( G/cm 3 ) | 1.06 | 1.06 |
| Hardness(A°) | 20 | 30 |
| Strength( MPa) | 3.1-3.6 | 3.4-4.1 |
| Tear Strength (kN/m ) | 19.8-24.3 | 19.8-23.4 |
| Elongation(%) | 600-720 | 560-630 |
| Linear Shrinkage(%) | ≤0.2 | ≤0.2 |
| Curing Agent Addition Ratio(%) | 2-3% | 2-3% |
| Operating Time( mins ) | 30-40 | 30-40 |
| Curing Time( hours ) | 3-4 | 3-4 |




