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Key Differences
| Product Type |
|
|
| Pot Life | 40 minutes | 4 hours |
| Shore D Hardness | — | 90 |
| Shore A Hardness | 29 | — |
| Specific Volume | 23.7 cu. in./lb. | 16.5 cu. in./lb. |
| Color | Yellow | Grey |
| Shrinkage | 0.002 in. / in. | 0.001 in. / in. |
| Thermal Conductivity | 0.21 W/M*K | 0.675 W/M*K |
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
| Mold Max™ 29NV | EpoxAcast™ 655 + HT Hardener | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 10,000 cps | 12,000 cps |
| Mix Ratio By Weight | 100A:10B | 100A:8B |
| Pot Life | 40 minutes | 4 hours |
| Cure Time | 6 hours | Twenty Four Hours Followed By Post Cures |
| Shore D Hardness | — | 90 |
| Shore A Hardness | 29 | — |
| Specific Gravity | 1.17 g/cc | 1.64 g/cc |
| Specific Volume | 23.7 cu. in./lb. | 16.5 cu. in./lb. |
| Color | Yellow | Grey |
| Die B Tear Strength | 96 pli | — |
| Tensile Strength | 417 psi | — |
| Tensile Modulus | — | 7,200,000 psi |
| Ultimate Tensile | — | 6,000 psi |
| Tensile Elongation | — | 0.50 % |
| Elongation @ Break | 361 % | — |
| 100% Modulus | 54 psi | — |
| Compressive Strength | — | 15,700 psi |
| Compressive Modulus | — | 270,000 psi |
| Shrinkage | 0.002 in. / in. | 0.001 in. / in. |
| Heat Deflection Temp | — | 225 °F |
| Useful Temperature (min) | -65 °F | — |
| Useful Temperature (max) | 400 °F | — |
| Dielectric Constant, 100Hz | 3.29 | — |
| Dielectric Strength | 330 volts/mil | — |
| Dissipation Factor, 100Hz | 0.005 | — |
| Thermal Conductivity | 0.21 W/M*K | 0.675 W/M*K |
| Volume Resistance | 8.29E+11 ohm | — |
| Volume Resistivity | 5.83E+13 ohm/cm | — |
Product Description
Mold Max™ 29NV
Mold Max™ 29NV is a Shore 29A tin-catalyzed silicone mold rubber that offers low viscosity, fast cure and long library life.
Mold Max™ 29NV does not require vacuum degassing. Mix ratio is 100A:10B by weight. Working time is 45 minutes and cure time is 6 hours at room temperature.
Mold Max™ 29NV will reproduce the finest detail and is suitable for a variety of industrial and art related applications including making molds for reproducing prototypes, furniture, sculpture and architectural elements. Cure time can be reduced with Accel-T™ cure accelerator. Mold Max™ 29NV can be used to cast a variety of materials including wax, gypsum, low melt alloys/metals and urethane, epoxy or polyester resins. Important: Do not cast concrete into rubber molds made with this product. Concrete will not cure properly and inhibition will result.
Important; you must weigh Part A & B components using a gram scale to be successful with Mold Max™ 29NV.
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).