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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 800 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 60 minutes | 2.5 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 60 | 90 |
| Tensile Strength | 880 psi | 1,800 psi |
| Elongation @ Break | 480 % | 125 % |
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 | KX Flex™ 90 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 800 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 1A:1B | 100A:120B |
| Pot Life | 60 minutes | 2.5 minutes |
| Handling Time | — | 30 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 60 | 90 |
| Specific Gravity | 1.04 g/cc | 1.15 g/cc |
| Specific Volume | 26.6 cu. in./lb. | 24.1 cu. in./lb. |
| Color | Off-White | Off-White |
| Die C Tear Strength | 136 pli | — |
| Tensile Strength | 880 psi | 1,800 psi |
| Elongation @ Break | 480 % | 125 % |
| 100% Modulus | 300 psi | — |
| Shrinkage | <0.001 in. / in. | 0.005 in. / in. |
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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KX Flex™ 90
KX Flex™ Series urethanes are fast setting flexible urethane casting elastomers that cure quickly and offer exceptional physical and performance properties including high impact resistance. KX Flex™ Series urethanes are easy to color using SO-Strong™, UVO™ or IGNITE™ colorants. KX Flex™ urethanes are phthalate free, mercury free and MOCA free.
KX Flex™ Series urethanes have a pot life of 2.5 minutes and handling time of 30 minutes (depending on mass). With Shore hardness values of 40A, 60A and 90A, this material is used for a variety of applications including fast mold making, fast model duplication, prototyping, durable miniatures, props and special effects, or making parts that are impact resistant. Fully cured castings are flexible, tough and durable.