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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 23,000 cps | Brushable |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 3.5 hours | 20 minutes |
| Cure Time | 24 hours | 16 hours |
| Shore D Hardness | 90 | — |
| Shore A Hardness | — | 60 |
| Specific Volume | 16.7 cu. in./lb. | 23.5 cu. in./lb. |
| Color | Grey | Off 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 + 103 Hardener | Brush-On™ 60 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 23,000 cps | Brushable |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:12B | 100A:125B |
| Pot Life | 3.5 hours | 20 minutes |
| Cure Time | 24 hours | 16 hours |
| Shore D Hardness | 90 | — |
| Shore A Hardness | — | 60 |
| Specific Gravity | 1.66 g/cc | 1.18 g/cc |
| Specific Volume | 16.7 cu. in./lb. | 23.5 cu. in./lb. |
| Color | Grey | Off White |
| Die C Tear Strength | — | 80 pli |
| Tensile Strength | — | 630 psi |
| Tensile Modulus | 2,040,000 psi | — |
| Ultimate Tensile | 4,810 psi | — |
| Tensile Elongation | 0.54 % | — |
| Elongation @ Break | — | 400 % |
| Compressive Strength | 12,500 psi | — |
| Compressive Modulus | 125,500 psi | — |
| Flexural Strength | 7,660 psi | — |
| Flexural Modulus | 1,403,000 psi | — |
| Shrinkage | 0.0006 in. / in. | <.001 in. / in. |
| Heat Deflection Temp | 135 °F | — |
| Thermal Conductivity | 0.675 W/M*K | — |
Product Description
EpoxAcast™ 655 + 103 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.
Brush-On™ 60
Smooth-On’s Brush-On™ Series of mold rubbers are extremely versatile and are famous for their abrasion resistance and high tear strength. They have the convenience of a one-to-one mix ratio and are easy to mix and apply with a brush or spatula.