100:2 Industrial Momentive Tin Cure Silicone Rubber Liquid Rubber For PU Resin Mold
100:2 Industrial Liquid Silicone Rubber Gypsum Wall Brick Crafts PU Resin Concrete 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-620AB |
| Feature | high temperature 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;
2 Degas the well-mixed rubber under a vacuum, the vacuuming time should not be too long, generally not more than 10 minutes.
3 The mold can be fully cured after 4 hours at room temperature. Do not heat to cure.Even if you want to heat it up to accelerate its curing time, the temperature is not recommended to be higher than 100 °C. For best results, molds are best left for 24 hours before use.
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