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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 5,000 cps | 30,000 cps |
| Pot Life | 3 hours | 45 minutes |
| Barcol 935 Hardness | 93 | — |
| Shore A Hardness | — | 27 |
| Specific Volume | 18.22 cu. in./lb. | 25.0 cu. in./lb. |
| Color | Black | Translucent |
| Shrinkage | 0.007 in. / in. | 0.002 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™ 650 BLACK + HT Hardener | Mold Max™ 27T | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 5,000 cps | 30,000 cps |
| Mix Ratio By Weight | 100A:10B | 100A:10B |
| Pot Life | 3 hours | 45 minutes |
| Cure Time | Twenty Four Hours Followed By Post Cures | 24 hours |
| Barcol 935 Hardness | 93 | — |
| Shore A Hardness | — | 27 |
| Specific Gravity | 1.52 g/cc | 1.11 g/cc |
| Specific Volume | 18.22 cu. in./lb. | 25.0 cu. in./lb. |
| Color | Black | Translucent |
| Die B Tear Strength | — | 110 pli |
| Tensile Strength | — | 575 psi |
| Tensile Modulus | 1,079,000 psi | — |
| Ultimate Tensile | 6,900 psi | — |
| Tensile Elongation | 0.82 % | — |
| Elongation @ Break | — | 400 % |
| 100% Modulus | — | 65 psi |
| Compressive Strength | 15,980 psi | — |
| Compressive Modulus | 134,000 psi | — |
| Flexural Strength | 10,850 psi | — |
| Flexural Modulus | 775,000 psi | — |
| Shrinkage | 0.007 in. / in. | 0.002 in. / in. |
| Heat Deflection Temp | 187 °F | — |
| Useful Temperature (min) | — | -65 °F |
| Useful Temperature (max) | — | 400 °F |
Product Description
EpoxAcast™ 650 BLACK + HT Hardener
EpoxAcast™ 650 Black is a mineral filled general purpose casting epoxy that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment.EpoxAcast™ 650 Black is used for making hard dies for metal stamping as well as patterns and fixtures. It is also used for electrical encapsulation to extend the life cycles and enhance the performance of potted electronic devices. The high compressive strength of EpoxAcast™ 650 Black makes it ideal for making stamping dies for production pressing of metal ornaments.
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Mold Max™ 27T
Mold Max™ 27T silicone is a water white translucent tin cured silicone rubber compound that has exceptional tear strength and working properties. It features Smooth-On’s “Libra™” catalyst for long library life. Mixed 100A:10B by weight, vacuum degassing is recommended for de-airing. Rubber cures overnight at room temperature. Mold Max™ ‘T’ silicones can be thickened with Thi-Vex™ thickener for brush-on application and effects.