Fast Curing Liquid Silicone Rubber For Architectural Decoration And Component Molds
HN-625 A/B is a two-component liquid silicone material. The two components are mixed in a ratio of 100:2. This product cures at room temperature.
Application of Tin Cure Silicone Rubber
HN-6XX series silicone is a tin-curing silicone,consisting of two components, A and B, in aratio of 100:2. It is a silicone that is cured bycondensation reaction at room temperatureafter being stirred evenly.
Technical parameter of Tin Cure Silicone Rubber
| Model |
HN-625AB |
| Feature |
easy foaming |
| 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.Exceptional Fluidity and Penetration
Tin-cured silicone features a low initial viscosity, exhibiting excellent self-leveling properties akin to a true liquid. This allows it to effortlessly penetrate the intricate crevices and fine textures of a prototype, automatically displacing air bubbles to ensure that the resulting mold precisely replicates every single detail of the original object.
2.Exceptional Physical Strength (Tear and Tensile Resistance)
Upon curing, this type of silicone exhibits remarkable toughness. Even when used with stone carvings or artworks featuring deep undercuts or intricate structures, the mold resists tearing or deformation—even under forceful pulling—during the demolding process. This significantly enhances the mold's durability and extends its service life, allowing for a high number of repeated castings.
Exceptional Cost-Effectiveness and Low Linear Shrinkage
As the preferred choice for industrial-grade molds, tin-cured silicone delivers high performance while maintaining outstanding cost efficiency. Through advanced formulation processes, its linear shrinkage rate is controlled within an extremely low range, thereby ensuring the dimensional accuracy of large-scale architectural components—such as Roman columns—during prolonged production runs.
Core Application Scenarios:
1.Good fluidity, easy defoaming, easy pouring, simple operation and easy demolding;
2.Rapid curing at room temperature;3.High tensile and tear strength, low linear shrinkage(s 0.3%);
3.High tensile and tear strength, low linear shrinkage(s 0.3%);
4.High number of demolding cycles;
5. Good weather resistance, high and low tempera-ture resistance, acid and alkali resistance, and agingresistance.
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