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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 21,000 cps | 35,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 40 minutes | 30 minutes |
| Cure Time | 7 hours | 24 hours |
| Shore A Hardness | 15 | 40 |
| Color | Translucent | Pink |
| Elongation @ Break | 771 % | 300 % |
| 100% Modulus | 40 psi | 200 psi |
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‑Sil™ 940 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 21,000 cps | 35,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 1A:1B | 100A:10B |
| Pot Life | 40 minutes | 30 minutes |
| Cure Time | 7 hours | 24 hours |
| Shore A Hardness | 15 | 40 |
| Specific Gravity | 1.07 g/cc | 1.18 g/cc |
| Specific Volume | 25.8 cu. in./lb. | 23.4 cu. in./lb. |
| Color | Translucent | Pink |
| Die B Tear Strength | 112 pli | 100 pli |
| Tensile Strength | 537 psi | 600 psi |
| Elongation @ Break | 771 % | 300 % |
| 100% Modulus | 40 psi | 200 psi |
| Shrinkage | <.001 in. / in. | <.001 in. / in. |
| Useful Temperature (min) | -65 °F | -65 °F |
| Useful Temperature (max) | 450 °F | 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‑Sil™ 940
Smooth-On Smooth-Sil™ Platinum Silicones cure at room temperature with negligible shrinkage. With different hardnesses to choose from, Smooth-Sil™ products offer tremendous versatility and are suitable for making production molds of any configuration, large or small. These silicones exhibit good chemical, abrasion and heat resistance. Materials such as plasters, concrete, wax, low-melt metal alloys or resins (urethane, epoxy or polyester) can then be cast into these silicone rubbers without a release agent.
Smooth-Sil™ Platinum Silicones are used for rapid prototyping, wax casting (foundries and candle makers), architectural restoration and for casting concrete. Smooth-Sil™ 940 is suitable for food related applications.