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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 21,000 cps | 280 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 40 minutes | 5 hours |
| Cure Time | 7 hours | 24 hours |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 15 | — |
| Color | Translucent | Clear |
| Tensile Strength | 537 psi | 6,630 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 | EpoxAcast™ 690 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 21,000 cps | 280 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 1A:1B | 100A:30B |
| Pot Life | 40 minutes | 5 hours |
| Cure Time | 7 hours | 24 hours |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 15 | — |
| Specific Gravity | 1.07 g/cc | 1.10 g/cc |
| Specific Volume | 25.8 cu. in./lb. | 25 cu. in./lb. |
| Color | Translucent | Clear |
| Die B Tear Strength | 112 pli | — |
| Tensile Strength | 537 psi | 6,630 psi |
| Tensile Modulus | — | 572,000 psi |
| Tensile Elongation | — | 1.8 % |
| Elongation @ Break | 771 % | — |
| 100% Modulus | 40 psi | — |
| Compressive Strength | — | 9,610 psi |
| Compressive Modulus | — | 91,300 psi |
| Flexural Strength | — | 10,980 psi |
| Flexural Modulus | — | 410,000 psi |
| Shrinkage | <.001 in. / in. | 0.002 in. / in. |
| Heat Deflection Temp | — | 115 °F |
| Useful Temperature (min) | -65 °F | — |
| Useful Temperature (max) | 450 °F | — |
| Dielectric Strength | >350 volts/mil | — |
| Refractive Index | — | 1.565 nm |
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).
EpoxAcast™ 690
EpoxAcast™ 690 is an UV resistant clear casting epoxy resins suitable for a variety of industrial and art related projects requiring a rigid, clear finished casting. EpoxAcast™ 690 features a very low viscosity for easy mixing and minimal bubble entrapment. Castings cure with negligible shrinkage and are very hard and strong. Resin can be colored with UVO™ or IGNITE™ colorants. Cast Magic™ and Glow Worm™ powders can also be added to create amazing casting effects.