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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 280 cps | 1,100 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 5 hours | 4 minutes |
| Cure Time | 24 hours | 48 hours |
| Shore D Hardness | 80 | — |
| Shore A Hardness | — | 60 |
| Color | Clear | White |
| Tensile Strength | 6,630 psi | 990 psi |
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™ 690 | Simpact™ 60A | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 280 cps | 1,100 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:30B | 100A:94B |
| Pot Life | 5 hours | 4 minutes |
| Handling Time | — | 2 hours |
| Cure Time | 24 hours | 48 hours |
| Shore D Hardness | 80 | — |
| Shore A Hardness | — | 60 |
| Specific Gravity | 1.10 g/cc | 1.08 g/cc |
| Specific Volume | 25 cu. in./lb. | 25.7 cu. in./lb. |
| Color | Clear | White |
| Die C Tear Strength | — | 142 pli |
| Tensile Strength | 6,630 psi | 990 psi |
| Tensile Modulus | 572,000 psi | — |
| Tensile Elongation | 1.8 % | — |
| Elongation @ Break | — | 400 % |
| 100% Modulus | — | 312 psi |
| Compressive Strength | 9,610 psi | — |
| Compressive Modulus | 91,300 psi | — |
| Flexural Strength | 10,980 psi | — |
| Flexural Modulus | 410,000 psi | — |
| Shrinkage | 0.002 in. / in. | <.007 in. / in. |
| Heat Deflection Temp | 115 °F | — |
| Refractive Index | 1.565 nm | — |
Product Description
EpoxAcast™ 690
EpoxAcast™ 690 is an UV resistant clear casting epoxy resins suitable for a variety of industrial and art related projects requiring a rigid, clear finished casting. EpoxAcast™ 690 features a very low viscosity for easy mixing and minimal bubble entrapment. Castings cure with negligible shrinkage and are very hard and strong. Resin can be colored with UVO™ or IGNITE™ colorants. Cast Magic™ and Glow Worm™ powders can also be added to create amazing casting effects.
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.