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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 12,000 cps | 1,100 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 4 hours | 4 minutes |
| Shore D Hardness | 90 | — |
| Shore A Hardness | — | 60 |
| Specific Volume | 16.5 cu. in./lb. | 25.7 cu. in./lb. |
| Color | Grey | White |
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
| EpoxAcast™ 655 + HT Hardener | Simpact™ 60A | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 12,000 cps | 1,100 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:8B | 100A:94B |
| Pot Life | 4 hours | 4 minutes |
| Handling Time | — | 2 hours |
| Cure Time | Twenty Four Hours Followed By Post Cures | 48 hours |
| Shore D Hardness | 90 | — |
| Shore A Hardness | — | 60 |
| Specific Gravity | 1.64 g/cc | 1.08 g/cc |
| Specific Volume | 16.5 cu. in./lb. | 25.7 cu. in./lb. |
| Color | Grey | White |
| Die C Tear Strength | — | 142 pli |
| Tensile Strength | — | 990 psi |
| Tensile Modulus | 7,200,000 psi | — |
| Ultimate Tensile | 6,000 psi | — |
| Tensile Elongation | 0.50 % | — |
| Elongation @ Break | — | 400 % |
| 100% Modulus | — | 312 psi |
| Compressive Strength | 15,700 psi | — |
| Compressive Modulus | 270,000 psi | — |
| Shrinkage | 0.001 in. / in. | <.007 in. / in. |
| Heat Deflection Temp | 225 °F | — |
| Thermal Conductivity | 0.675 W/M*K | — |
Product Description
EpoxAcast™ 655 + HT Hardener
EpoxAcast™ 655 (formerly Metalset™ A-30) is a versatile aluminum filled castable epoxy resin that is very hard and strong. It is dimensionally stable, even when mass cast up to 512 in³ / 8,390 cm³. Maximum heat resistance is achieved using HT HIGH TEMP hardener (up to 225°F/108°C).
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.