C
mpare
T
l
Key Differences
| Product Type |
|
|
| Mixed Viscosity | 23,000 cps | 100 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 3.5 hours | 2.5 minutes |
| Cure Time | 24 hours | 15 minutes |
| Shore D Hardness | 90 | 80 |
| Specific Volume | 16.7 cu. in./lb. | 25.4 cu. in./lb. |
| Color | Grey | Off-White |
| Tensile Modulus | 2,040,000 psi | 246,000 psi |
| Compressive Strength | 12,500 psi | 8,760 psi |
| Compressive Modulus | 125,500 psi | 77,400 psi |
| Flexural Modulus | 1,403,000 psi | 271,000 psi |
| Shrinkage | 0.0006 in. / in. | 0.01 in. / in. |
| Heat Deflection Temp | 135 °F | 194 °F |
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 | TASK™ 8 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 23,000 cps | 100 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:12B | 120A:100B |
| Pot Life | 3.5 hours | 2.5 minutes |
| Cure Time | 24 hours | 15 minutes |
| Shore D Hardness | 90 | 80 |
| Specific Gravity | 1.66 g/cc | 1.09 g/cc |
| Specific Volume | 16.7 cu. in./lb. | 25.4 cu. in./lb. |
| Color | Grey | Off-White |
| Tensile Strength | — | 5,840 psi |
| Tensile Modulus | 2,040,000 psi | 246,000 psi |
| Ultimate Tensile | 4,810 psi | — |
| Tensile Elongation | 0.54 % | — |
| Elongation @ Break | — | 4 % |
| Compressive Strength | 12,500 psi | 8,760 psi |
| Compressive Modulus | 125,500 psi | 77,400 psi |
| Flexural Strength | 7,660 psi | 8,280 psi |
| Flexural Modulus | 1,403,000 psi | 271,000 psi |
| Shrinkage | 0.0006 in. / in. | 0.01 in. / in. |
| Heat Deflection Temp | 135 °F | 194 °F |
| Heat Deflection With Post Cure | — | 263 °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.
TASK™ 8
TASK™ 8 is a heat resistant polyurethane resin system made specifically for prototyping / casting applications which require thermal resistance of up to 263°F /129°C.