Transparent HN-625 A/B Tin Cure Silicone Rubber Liquid for Molds Making
HN-625 A/B is a two-component transparent tin cure silicone rubber liquid with high chemical stability and wide temperature range of -55°C to +220°C. Cured at room temperature with a 100:2 mixing ratio, it delivers precise, low-shrinkage molds for construction and crafts applications.
Key Features
- High Chemical Stability - Maintains performance from -55°C to +220°C for long-term use
- Transparent Appearance - Clear formulation enables easy visual monitoring of mold quality
- Low Shrinkage ≤0.2% - No low molecules released during cross-linking, volume remains unchanged, high precision
- Low Viscosity & Good Fluidity - Convenient operation and easy pouring, cures at room temperature or heated
- High Tear Strength - 19.8-24.3 kN/m for many mold turning times and long service life
- Waterproof & Ozone Resistant - Aging resistance with excellent physiological inertia
- Environmentally Friendly - Non-toxic, tasteless, non-corrosive, MSDS and RoHS certified
Technical Specifications
| Model |
HN-625 A/B |
| Viscosity |
18000-25000 cps |
| Hardness |
30 Shore A |
| Tensile Strength |
3.4-4.1 MPa |
| Tear Strength |
19.8-24.3 kN/m |
| Elongation at Break |
560-630% |
| Linear Shrinkage |
≤0.2% |
| Curing Agent Addition Ratio |
2-3% |
| Operating Time |
30-40 mins |
| Curing Time |
3-4 hours |
| Temperature Range |
-55°C to +220°C |
| Packaging |
25Kg/200Kg iron drum |
Typical Applications
- Large-Scale Stone & Gypsum Molds
- Cultural Stone & Artificial Stone Molds
- Roman Columns & Stone Carvings
- Resin & Gypsum Handicrafts
- Segmented Molds & Tire Turning Molds
As a direct factory manufacturer, we offer custom formulations and free evaluation samples. Contact our sales team today for bulk wholesale pricing.