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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 430 cps | 21,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 5 minutes | 60 minutes |
| Cure Time | 30 minutes | 24 hours |
| Shore D Hardness | 60 | — |
| Shore A Hardness | — | 18 |
| Color | Translucent White | Water Clear Translucent |
| Tensile Strength | 2,420 psi | 425 psi |
| Elongation @ Break | 100 % | 545 % |
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
| Smooth-Cast™ 60D | SORTA-Clear™ 18 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 430 cps | 21,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 100A:93B | 100A:10B |
| Pot Life | 5 minutes | 60 minutes |
| Cure Time | 30 minutes | 24 hours |
| Shore D Hardness | 60 | — |
| Shore A Hardness | — | 18 |
| Specific Gravity | 1.05 g/cc | 1.08 g/cc |
| Specific Volume | 26.4 cu. in./lb. | 25.6 cu. in./lb. |
| Color | Translucent White | Water Clear Translucent |
| Die B Tear Strength | — | 80 pli |
| Tensile Strength | 2,420 psi | 425 psi |
| Elongation @ Break | 100 % | 545 % |
| 100% Modulus | — | 35 psi |
| Shrinkage | 0.012 in. / in. | <.001 in. / in. |
| Useful Temperature (min) | — | -65 °F |
| Useful Temperature (max) | — | 450 °F |
Product Description
Smooth-Cast™ 60D
The Smooth-Cast™ Semi-Rigid line of low-cost semi-rigid urethane casting resins cure quickly to semi-rigid plastics that offer exceptional strength and impact resistance.
New Formulations – New Look!
Smooth-Cast™ 60D is newly reformulated with a translucent white appearance and improved physical properties. All Smooth-Cast semi rigids are now mercury free and phthalate free. These plastics are easy-to-use (mix ratio is 1A:1B by volume) and have low viscosities for minimal bubble entrapment. Vibrant colors are possible by adding SO-Strong™, UVO™ or Ignite™ color pigments.
These semi-rigid plastics are good for making impact resistant prototypes, models, toys, props, climbing holds, etc.
› Click here for more Smooth-Cast™ resin products.
SORTA-Clear™ 18
SORTA-Clear™ Series rubbers are premium water clear translucent silicone rubbers (platinum catalyst) which cure at room temperature with negligible shrinkage. This product requires a gram scale for measuring parts A + B. SORTA-Clear™ 18 comes in Shore 18A hardness and features high tensile and tear strength.
SORTA-Clear™ silicones are ideal for making prototype, jewelry or other molds of any configuration where model visibility is important (i.e. extracting a model from the mold via cutting). Materials such as urethane, epoxy or polyester resins can then be cast into SORTA-Clear™ silicone without application of a release agent. Other materials such as wax and low melt metal alloys can also be cast into SORTA-Clear™. SORTA-Clear™ can be pigmented with Silc Pig™ silicone pigments.
SORTA Clear™ 18 silicone rubber is FOOD SAFE and can be used for culinary applications including casting chocolate and other confections.
SORTA-Clear™ 18 is also skin safe and certified by an independent laboratory.