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Smooth-Cast 321 resin is an off-white bone colored resin often used when making replica skulls, bones and teeth. Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents.
| Mix Ratio By Volume | 1A:1B |
| Mix Ratio By Weight | 100A:90B |
| Specific Gravity | 1.05 g/cc |
| Specific Volume | 26.4 cu. in./lb. |
| Color | Off White |
| Pot Life | 9 minutes |
| Cure Time | 30 minutes |
| Tensile Strength | 3,000 psi |
| Elongation @ Break | 8 % |
| Compressive Modulus | 40,300 psi |
| Shrinkage | 0.007 in. / in. |
| Shore Hardness | 70 D |
| Heat Deflection Temp | 140 °F |
| Tensile Modulus | 138,000 psi |
| Flexural Strength | 3,500 psi |
| Flexural Modulus | 110,000 psi |
| Compressive Strength | 3,550 psi |
| Mixed Viscosity | 80 cps |
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Starter Kits are a great way to introduce anyone to the world of mold making...
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Body Double® SILK is a self-releasing platinum-cure silicone rubber that can be applied directly to the skin to...
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Gypsona® Plaster Bandages remain the industry standard for making a fast, strong support shell specially in...
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OOMOO® 25 is an easy to use silicone rubber compound that features a convenient one-to-one...
