Stable Performance Liquid Silicone Rubber For Long Term Factory Mold Application
Description of Tin Cure Silicone Rubber
HN-620 A/B is a two-part liquid silicone rubber. The recommended mixing weight ratio of Component A to Component B is 100:2, and the mixture cures completely at room temperature.
Application
HN-620 A/B is industrial-grade liquid silicone rubber specially developed for construction mold making. It is ideal for mold replication of large stone, gypsum wares, cement components, cultural stone, artificial stone, Roman columns, stone carvings and other architectural & decorative products. Besides, it can produce split molds for resin crafts, gypsum artworks, handmade soap, tire casting molds and more craft pieces.
Technical parameter
| 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
1. High tear, temperature, acid-alkali and aging resistance
2. Smooth flow, easy defoaming & demolding, non-whitening surface
3. Reusable molds with long service cycle
4. Linear shrinkage ＜ 0.2‰
5. Custom color, hardness, viscosity and operation time
Advantages
Superior Tear Resistance & Extended Service Life
Compared with ordinary molding silicones, Hannast silicone features superior flexibility and remarkable tear strength. The resulting molds support multiple repeated uses with a much longer service lifespan.
Ultra-Low Shrinkage for High-Fidelity Replication
Its linear shrinkage rate is controlled within 0.2%, capable of perfectly reproducing intricate and delicate surface details.
Non-Toxic & Odor-Free
Formulated with high-quality silicone raw materials, this liquid silicone rubber generates no harsh odors, ensuring safe and worry-free operation.
Excellent Flowability for Simple Processing
It boasts outstanding fluidity and self-leveling performance, facilitating automatic bubble elimination and smooth pouring to streamline mold production.
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