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Key Differences
| Mixed Viscosity | 20,000 cps | 4,250 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 40 minutes | 30 minutes |
| Cure Time | 24 hours | 6 hours |
| Shore A Hardness | 60 | 30 |
| Color | Red | Lavender |
| Die B Tear Strength | 63 pli | 40 pli |
| Tensile Strength | 398 psi | 240 psi |
| Elongation @ Break | 132 % | 250 % |
| 100% Modulus | 331 psi | 100 psi |
| Shrinkage | 0.0015 in. / in. | 0.0025 in. / in. |
| Useful Temperature (max) | 560 °F | 400 °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
| Mold Max™ 60 | OOMOO™ 30 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 20,000 cps | 4,250 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:3B | 100A:130B |
| Pot Life | 40 minutes | 30 minutes |
| Cure Time | 24 hours | 6 hours |
| Shore A Hardness | 60 | 30 |
| Specific Gravity | 1.45 g/cc | 1.34 g/cc |
| Specific Volume | 19.1 cu. in./lb. | 20.6 cu. in./lb. |
| Color | Red | Lavender |
| Die B Tear Strength | 63 pli | 40 pli |
| Tensile Strength | 398 psi | 240 psi |
| Elongation @ Break | 132 % | 250 % |
| 100% Modulus | 331 psi | 100 psi |
| Shrinkage | 0.0015 in. / in. | 0.0025 in. / in. |
| Useful Temperature (min) | -65 °F | -65 °F |
| Useful Temperature (max) | 560 °F | 400 °F |
| Dielectric Constant, 100Hz | 3.4 | — |
| Dielectric Strength | >500 volts/mil | — |
| Dissipation Factor, 100Hz | 0.02 | — |
| Thermal Conductivity | 0.347 W/M*K | — |
| Volume Resistivity | 9.000000E+14 ohm/cm | — |
Product Description
Mold Max™ 60
Mold Max™ 60 is a Shore 60A tin catalyzed silicone mold rubber formulated for applications requiring high heat resistance (up to 560°F/294°C). It features a low mixed viscosity and cured rubber exhibits very low linear shrinkage. Parts A & B are mixed 100A & 3B by weight. Pot life is 40 minutes and cure time is 24 hours. Applications include making foundry patterns, flat pattern reproductions and casting low-melt metal alloys such as tin and pewter.
OOMOO™ 30
No Vacuuming – No Scale – Easy To Use . . . OOMOO™ 30 is an easy to use tin cure silicone rubber compound that features a convenient one-to-one by volume mix ratio (no scale necessary). It has low viscosity for easy mixing and pouring . . . vacuum degassing is not necessary. This product cures at room temperature with negligible shrinkage. OOMOO™ 30 has a 30-minute pot life, with a six-hour cure time.
For The Novice Mold Maker - OOMOO™ silicones do not have great tear strength. They are good for making simple one- or two piece block molds. If you require a high-tear strength silicone, Mold Max™ silicones are recommended.
OOMOO™ 30 is suitable for a variety of art-related and industrial applications including making one and two-piece block molds for sculpture and prototype reproduction, casting plaster, resins and wax. OOMOO™ silicones are also suitable for electrical potting and encapsulation applications.