HN-620 A/B is a two-part tin-catalyzed (condensation cure) RTV2 liquid silicone rubber blended at a 100:2 weight ratio and cured at room temperature into a flexible, tear-resistant rubber. Its low viscosity and 15 Shore A softness deliver exceptional detail reproduction from the master model — ideal for durable molds used in the candle, handmade soap, confectionery and craft industries.
| Property | Value |
|---|---|
| Model | HN-620 A/B |
| Mixing Ratio (A:B) | 100:2 |
| Color | White / Translucent |
| Hardness | 15 Shore A (10–20 Shore A range) |
| Viscosity | 18,000–25,000 cps |
| Density | 1.06 g/cm³ |
| Tensile Strength | 3.1–3.6 MPa |
| Tear Strength | 19.8–24.3 kN/m |
| Elongation | 600–720% |
| Linear Shrinkage | ≤0.2% |
| Curing Agent Addition | 2–3% |
| Operating Time | 30–40 minutes |
| Curing Time | 3–4 hours at room temperature |