Casting large cornices or deeply carved ceiling roses presents a unique challenge: you need a mould flexible enough to release trapped details, but strong enough not to tear after a few uses. Our RTV-2 Silicone for architectural decor is the solution.
Designed specifically for plasterers, artisans, and restoration experts, this silicone offers the perfect balance of high-performance properties. It easily handles the deep undercuts found in Victorian and Georgian style mouldings, ensuring your plaster casts come out clean and crisp, cast after cast.
Why Choose This Silicone for Your Workshop?
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Built for Undercuts: High elasticity means easy demoulding of complex floral and geometric patterns without ripping the silicone.
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Longer Mould Life: Excellent chemical resistance to gypsum and plaster extends the working life of your moulds, saving you time and money.
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Precise Dimensioning: Extremely low shrinkage guarantees accurate reproduction for seamless cornice joins.
| Item | Color | Viscosity (mPa·s) | Hardness (Shore A) | Tensile Strength (MPa) | Elongation at Break % | Tear Strength (N/mm²) | Linear Shrinkage % |
| YS805 | White | 12000±2000 | 5±2 | ≥1.5 | ≥550 | ≥8 | ≤0.3 |
| YS810 | White | 14000±2000 | 10±2 | ≥1.9 | ≥500 | ≥13 | ≤0.3 |
| YS815 | White | 16000±2000 | 15±2 | ≥2.1 | ≥500 | ≥17 | ≤0.3 |
| YS820 | White | 20000±2000 | 20±2 | ≥2.5 | ≥450 | ≥22 | ≤0.3 |
| YS825 | White | 21000±2000 | 25±2 | ≥3.0 | ≥450 | ≥23 | ≤0.3 |
| YS830 | White | 22000±2000 | 30±2 | ≥3.5 | ≥350 | ≥23 | ≤0.3 |
| YS835 | White | 22000±2000 | 35±2 | ≥3.5 | ≥310 | ≥22 | ≤0.3 |
| YS840 | White | 22000±2000 | 40±2 | ≥4.0 | ≥310 | ≥20 | ≤0.3 |
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