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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 100 cps |
| Pot Life | 60 minutes | 2.5 minutes |
| Cure Time | 16 hours | 15 minutes |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 60 | — |
| Color | Off-White | Black |
| Tensile Strength | 880 psi | 5,840 psi |
| Elongation @ Break | 480 % | 4 % |
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
| VytaFlex™ 60 | Smooth-Cast™ ONYX™ FAST | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 100 cps |
| Mix Ratio By Volume | 1A:1B | 100A:100B |
| Mix Ratio By Weight | 1A:1B | 120A:100B |
| Pot Life | 60 minutes | 2.5 minutes |
| Cure Time | 16 hours | 15 minutes |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 60 | — |
| Specific Gravity | 1.04 g/cc | 1.09 g/cc |
| Specific Volume | 26.6 cu. in./lb. | 27.7 cu. in./lb. |
| Color | Off-White | Black |
| Die C Tear Strength | 136 pli | — |
| Tensile Strength | 880 psi | 5,840 psi |
| Tensile Modulus | — | 246,000 psi |
| Elongation @ Break | 480 % | 4 % |
| 100% Modulus | 300 psi | — |
| Compressive Strength | — | 8,760 psi |
| Compressive Modulus | — | 77,400 psi |
| Flexural Strength | — | 8,280 psi |
| Flexural Modulus | — | 246,000 psi |
| Shrinkage | <0.001 in. / in. | 0.010 in. / in. |
| Heat Deflection With Post Cure | — | 250 °F |
Product Description
VytaFlex™ 60
Using Smooth-On’s exclusive “V-Polymer™” technology, VytaFlex™ urethane rubbers offer superior physical and performance properties for casting concrete. VytaFlex™ urethanes are available in 10A, 20A, 30A, 40A, 45A, 50A and 60A Shore hardness’s and feature convenient one-to-one by volume mix ratios.
Vacuum degassing is not necessary and VytaFlex™ rubbers cure with negligible shrinkage to a durable rubber that will last in production.
VytaFlex™ mold rubbers work especially well for casting pigmented / colored concrete. Molds made with VytaFlex™ Series urethanes will render accurate and uniform colored castings.
FOR COMMERCIAL/INDUSTRIAL USE ONLY
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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.