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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 12,000 cps | 5,400 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 4 hours | 5 minutes |
| Shore D Hardness | 90 | — |
| Shore A Hardness | — | 85 |
| Specific Volume | 16.5 cu. in./lb. | 25 cu. in./lb. |
| Color | Grey | Amber |
| Shrinkage | 0.001 in. / in. | 0.0038 in. / in. |
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 | URE-BOND™ II | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 12,000 cps | 5,400 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:8B | 100A:92B |
| Pot Life | 4 hours | 5 minutes |
| Handling Time | — | 60 minutes |
| Cure Time | Twenty Four Hours Followed By Post Cures | 24 hours |
| Shore D Hardness | 90 | — |
| Shore A Hardness | — | 85 |
| Specific Gravity | 1.64 g/cc | 1.1 g/cc |
| Specific Volume | 16.5 cu. in./lb. | 25 cu. in./lb. |
| Color | Grey | Amber |
| Die C Tear Strength | — | 175 pli |
| Tensile Strength | — | 3,400 psi |
| Tensile Modulus | 7,200,000 psi | — |
| Ultimate Tensile | 6,000 psi | — |
| Tensile Elongation | 0.50 % | — |
| Elongation @ Break | — | 121 % |
| 100% Modulus | — | 700 psi |
| Compressive Strength | 15,700 psi | — |
| Compressive Modulus | 270,000 psi | — |
| Shrinkage | 0.001 in. / in. | 0.0038 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).
URE-BOND™ II
URE-BOND™ II is a premium performance urethane adhesive compound that offers a strong flexible bond between many different surfaces. URE-BOND™ is ideal for adhering polyurethane rubber and other polymer products to many types of substrates (such as plaster, wood, cement, stone) and non-porous materials (such as glass, hard plastics and a variety of metals). URE-BOND™ II has also been used to repair torn polyurethane molds on a limited basis (with proper surface preparation). Working time is 5 minutes at room temperature (73° F / 23° C). Once mixed and applied, URE-BOND™ takes about 60 minutes to cure and yields a strong, flexible bond.