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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 21,000 cps | 80 cps |
| Pot Life | 40 minutes | 3 minutes |
| Cure Time | 7 hours | 10 minutes |
| Shore D Hardness | — | 70 |
| Shore A Hardness | 15 | — |
| Color | Translucent | Off White |
| Tensile Strength | 537 psi | 3,000 psi |
| Elongation @ Break | 771 % | 10 % |
Disclaimer
Although we do our best to ensure accuracy, Smooth-On offers no warranties, promises, and/or representations of any kind, either expressed or implied, as to the accuracy, completeness, or reliability of the information contained on this Compare Tool, nor suitability of the information contained herein to your particular circumstances. Smooth-On assumes no liability for losses or damages of whatever nature (direct, indirect, consequential or other) associated with your use, or inability to use, the Compare Tool, or from your use (or failure to use) the information contained herein. Other useful tools include product technical bulletins and our extensive FAQ section. You can also contact our technical support team.All Technical Data
| Dragon Skin™ 15 | Smooth-Cast™ 320 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 21,000 cps | 80 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:90B |
| Pot Life | 40 minutes | 3 minutes |
| Cure Time | 7 hours | 10 minutes |
| Shore D Hardness | — | 70 |
| Shore A Hardness | 15 | — |
| Specific Gravity | 1.07 g/cc | 1.05 g/cc |
| Specific Volume | 25.8 cu. in./lb. | 26.4 cu. in./lb. |
| Color | Translucent | Off White |
| Die B Tear Strength | 112 pli | — |
| Tensile Strength | 537 psi | 3,000 psi |
| Tensile Modulus | — | 138,000 psi |
| Elongation @ Break | 771 % | 10 % |
| 100% Modulus | 40 psi | — |
| Compressive Strength | — | 3,650 psi |
| Compressive Modulus | — | 45,800 psi |
| Flexural Strength | — | 4,500 psi |
| Flexural Modulus | — | 132,000 psi |
| Shrinkage | <.001 in. / in. | 0.01 in. / in. |
| Heat Deflection Temp | — | 140 °F |
| Useful Temperature (min) | -65 °F | — |
| Useful Temperature (max) | 450 °F | — |
| Dielectric Strength | >350 volts/mil | — |
Product Description
Dragon Skin™ 15
Dragon Skin™ silicones are high performance platinum cure liquid silicone compounds that are used for a variety of applications ranging from creating skin effects and other movie special effects to making production molds for casting a variety of materials. Because of the superior physical properties and flexibility of Dragon Skin™ rubbers, they are also used for medical prosthetics and cushioning applications. Dragon Skin™ rubbers are also used for a variety of industrial applications and have a service temperature range of a constant -65°F to +450°F (-53°C to +232°C).
Smooth-Cast™ 320
The Smooth-Cast™ 320 Series consists of ultra-low viscosity casting resins that yield virtually bubble-free off-white castings. The Smooth-Cast™ 320 resins are sister products to our popular Smooth-Cast™ 300 Series of bright white plastics, but are easier to color using SO-Strong™ or Ignite™ color tints. Smooth-Cast™ 320 series is easy to mix and pour, offering the convenience of a 1A:1B by volume or 100A : 90B by weight mix ratio.
The Smooth-Cast™ 320 Series resins readily accept pigments and fillers (such as URE-FIL™ 3, 5 and 7 from Smooth-On). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth-Cast™ 320 Series resins include reproducing small to medium size sculptures, making prototype models, special effect props, decorative jewelry and taxidermy (bones, antlers, teeth etc.).