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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 10,000 cps | 23,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 90 seconds | 30 minutes |
| Cure Time | 1 hour | 3 hours |
| Shore D Hardness | — | 90 |
| Specific Volume | 69 cu. in./lb. | 16.7 cu. in./lb. |
| Color | White | Grey |
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
| Soma Foama™ 25 | EpoxAcast™ 655 + 101 Hardener | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 10,000 cps | 23,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 1A:1B | 100A:10B |
| Pot Life | 90 seconds | 30 minutes |
| Handling Time | 20 minutes | — |
| Cure Time | 1 hour | 3 hours |
| Shore D Hardness | — | 90 |
| Expansion (approximate) | 2-3 times | — |
| Foam Density | 25 lb/ft³ | — |
| Specific Gravity | 0.40 g/cc | 1.66 g/cc |
| Specific Volume | 69 cu. in./lb. | 16.7 cu. in./lb. |
| Color | White | Grey |
| Tensile Modulus | — | 2,040,000 psi |
| Ultimate Tensile | — | 4,810 psi |
| Tensile Elongation | — | 0.54 % |
| 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. |
| Heat Deflection Temp | — | 135 °F |
| Thermal Conductivity | — | 0.675 W/M*K |
Product Description
Soma Foama™ 25
Soma Foama™ is a soft, two-component platinum silicone flexible foam that is versatile and easy to use. Soma Foama™ 25 is a higher density foam vs. original Soma Foama™ 15 which expands 2-3 times its original volume and develops a uniform 25 lb./cu. ft. cell structure (400 kg/m³). Vibrant colors can be achieved by adding Silc-Pig™ silicone color pigments. Cured foam is high heat resistance (will resist up to 350°F/176°C), water resistant, UV resistant and resists oxidation and ozone degradation.
EpoxAcast™ 655 + 101 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.