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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 1,100 cps | 4,400 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 4 minutes | 20 minutes |
| Cure Time | 48 hours | 16 hours |
| Shore D Hardness | — | 88 |
| Shore A Hardness | 60 | — |
| Specific Volume | 25.7 cu. in./lb. | 17.6 cu. in./lb. |
| Color | White | Metal Gray |
| Tensile Strength | 990 psi | 3,250 psi |
| Elongation @ Break | 400 % | 1 % |
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
| Simpact™ 60A | TASK™ 18 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 1,100 cps | 4,400 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 100A:94B | 26A:100B |
| Pot Life | 4 minutes | 20 minutes |
| Handling Time | 2 hours | — |
| Cure Time | 48 hours | 16 hours |
| Shore D Hardness | — | 88 |
| Shore A Hardness | 60 | — |
| Specific Gravity | 1.08 g/cc | 1.57 g/cc |
| Specific Volume | 25.7 cu. in./lb. | 17.6 cu. in./lb. |
| Color | White | Metal Gray |
| Die C Tear Strength | 142 pli | — |
| Tensile Strength | 990 psi | 3,250 psi |
| Tensile Modulus | — | 514,000 psi |
| Elongation @ Break | 400 % | 1 % |
| 100% Modulus | 312 psi | — |
| Compressive Strength | — | 8,420 psi |
| Compressive Modulus | — | 97,300 psi |
| Flexural Strength | — | 10,700 psi |
| Flexural Modulus | — | 86,000 psi |
| Shrinkage | <.007 in. / in. | 0.0006 in. / in. |
| Heat Deflection Temp | — | 149 °F |
Product Description
Simpact™ 60A
Simpact™ 60A urethane is a low odor, fast-setting urethane elastomer which offers very high tear strength, impact resistance and wear resistance. Simpact™ urethanes are phthalate free, mercury free and MOCA free. Simpact™ urethanes pour easily. Working time is 4 minutes, handling time is 2 hours and full cure time is 48 hours at room temperature.
Cured rubber has exceptional performance characteristics and dimensional stability. Simpact™ urethanes can be colored with SO-Strong™, UVO™ or Ignite™ colorants. Simpact™ urethanes are suitable for making impact resistant props, prototypes and display pieces.
This material may congeal if exposed to cold temperatures. To reconstitute, Part A & B must be heated to 90°F (33°C) then thoroughly mixed to an even consistency.
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TASK™ 18
TASK™ 18 is a relatively low viscosity aluminum filled urethane casting resin that was developed specifically for making short run vacuum forming or thermoforming molds.
When Parts A and B are mixed in proper proportion, TASK™ 18 cures overnight at room temperature with negligible shrinkage to a very hard plastic that has a very high compressive and flexural strength. Cured TASK™ 18 can be polished, machined, drilled, painted, etc. TASK™ 18 is also used to make industrial production parts, prototype parts and tracing patterns.