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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 9,300 cps | 100 cps |
| Pot Life | 15 minutes | 2.5 minutes |
| Cure Time | 2 hours | 15 minutes |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 000-35 | — |
| Color | Translucent | Black |
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
| Ecoflex™ GEL | Smooth-Cast™ ONYX™ FAST | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 9,300 cps | 100 cps |
| Mix Ratio By Volume | 1A:1B | 100A:100B |
| Mix Ratio By Weight | 1A:1B | 120A:100B |
| Pot Life | 15 minutes | 2.5 minutes |
| Cure Time | 2 hours | 15 minutes |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 000-35 | — |
| Specific Gravity | 0.98 g/cc | 1.09 g/cc |
| Specific Volume | 28 cu. in./lb. | 27.7 cu. in./lb. |
| Color | Translucent | Black |
| Tensile Strength | — | 5,840 psi |
| Tensile Modulus | — | 246,000 psi |
| Elongation @ Break | >1000 % | 4 % |
| Compressive Strength | — | 8,760 psi |
| Compressive Modulus | — | 77,400 psi |
| Flexural Strength | — | 8,280 psi |
| Flexural Modulus | — | 246,000 psi |
| Shrinkage | <.001 in. / in. | 0.010 in. / in. |
| Heat Deflection With Post Cure | — | 250 °F |
| Refractive Index | 1.40451 | — |
Product Description
Ecoflex™ GEL
Ecoflex™ GEL is an extremely soft, platinum silicone rubber gel specifically designed for creating silicone makeup appliances, for cushioning, creating gaskets, encapsulation, and other applications requiring a very soft silicone material.
Certified Skin Safe - Cured Ecoflex™ GEL is skin safe and is certified by an independent laboratory.
Smooth-Cast™ ONYX™ FAST
Smooth-Cast™ ONYX™ is a mercury-free urethane resin that cures at room temperature to a deep black, solid plastic. ONYX™ resins offer the convenience of a 1A:1B by volume mix ratio and have very low viscosities, so they are easy to mix and pour. ONYX™ resins have an ultimate Shore hardness of 80D and offer higher physical properties and higher heat resistance vs. other general purpose resins.ONYX™ FAST resin has a pot life of 2.5 minutes and a cure time of 10-15 minutes. ONYX™ FAST is a good choice for creating fast cold cast bronze, brass, copper, nickel/silver, etc. effects.