Description: Cast your own metal figures and jewelry with confidence. Our Heat-Resistant Silicone is the go-to choice for artists and hobbyists working with low-melt metals like pewter and tin.
Unlike standard silicones that melt or warp under heat, this high-performance rubber is designed to handle the pour. It captures incredible detail—from the rivets on a tank to the texture of chainmail—giving you professional-quality metal replicas right from your workbench.
Why Choose This Silicone?
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Metal-Ready: Safe for pouring pewter, tin, and low-temp fusible alloys.
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Easy to Use: Simple mix ratio and good flowability make it easy to create block molds or two-part molds.
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Durable: Molds stay flexible and don’t turn gummy after repeated contact with hot metal.
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High temp RTV silicone
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Silicone for pewter casting
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Lead casting mold rubber
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Low melt alloy molds
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Spin casting silicone
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White metal casting rubber
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Heat resistant mold making
| Item | Color | Viscosity (mPa·s) | Hardness (Shore A) | Tensile Strength (MPa) | Elongation at Break % | Tear Strength (N/mm²) | Linear Shrinkage % |
| YS805 | White/translucnet | 12000±2000 | 5±2 | ≥1.5 | ≥550 | ≥8 | ≤0.3 |
| YS810 | White/translucent | 14000±2000 | 10±2 | ≥1.9 | ≥500 | ≥13 | ≤0.3 |
| YS815 | White/translucent | 16000±2000 | 15±2 | ≥2.1 | ≥500 | ≥17 | ≤0.3 |
| YS820 | White/translucent | 20000±2000 | 20±2 | ≥2.5 | ≥450 | ≥22 | ≤0.3 |
| YS825 | White/translucent | 21000±2000 | 25±2 | ≥3.0 | ≥450 | ≥23 | ≤0.3 |
| YS830 | White/translucent | 22000±2000 | 30±2 | ≥3.5 | ≥350 | ≥23 | ≤0.3 |
| YS835 | White/translucent | 22000±2000 | 35±2 | ≥3.5 | ≥310 | ≥22 | ≤0.3 |
| YS840 | White/translucent | 22000±2000 | 40±2 | ≥4.0 | ≥310 | ≥20 | ≤0.3 |
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