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Key Differences
| Mixed Viscosity | 25,000 cps | 4,250 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 45 minutes | 30 minutes |
| Cure Time | 24 hours | 6 hours |
| Color | Pink | Lavender |
| Die B Tear Strength | 125 pli | 40 pli |
| Tensile Strength | 577 psi | 240 psi |
Disclaimer
Although we do our best to ensure the accuracy of this Compare Tool, Smooth-On offers no warranty either expressed or implied as to the reliability of the information contained herein. Smooth-On assumes no liability for loss or damage associated with use of the Compare Tool. If this is a critical project, we encourage you to review all of the technical data below and contact our Technical Service department with any questions or concerns.All Technical Data
| Mold Max™ 30 | OOMOO™ 30 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 25,000 cps | 4,250 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:10B | 100A:130B |
| Pot Life | 45 minutes | 30 minutes |
| Cure Time | 24 hours | 6 hours |
| Shore A Hardness | 30 | 30 |
| Specific Gravity | 1.18 g/cc | 1.34 g/cc |
| Specific Volume | 23.5 cu. in./lb. | 20.6 cu. in./lb. |
| Color | Pink | Lavender |
| Die B Tear Strength | 125 pli | 40 pli |
| Tensile Strength | 577 psi | 240 psi |
| Elongation @ Break | 300 % | 250 % |
| 100% Modulus | 110 psi | — |
| Shrinkage | 0.002 in. / in. | 0.0025 in. / in. |
| Useful Temperature (min) | -65 °F | -65 °F |
| Useful Temperature (max) | 400 °F | 400 °F |
Product Description
Mold Max™ 30
Mold Max™ Silicones are tin-cured silicone rubber compounds that have exceptional working properties and library life. Mold Max™ Silicones feature Smooth-On’s exclusive “Libra™” catalyst for long library life. Mold Max™ silcones can be pigmented with Silc Pig™ silicone colorants. Pot life for the pourable silicones is 45 minutes and they cure overnight at room temperature.
Vacuum degassing mixed material using a vacuum pump and chamber to remove entrapped air is recommended.
OOMOO™ 30
No Vacuuming – No Scale – Easy To Use . . . OOMOO™ 30 is an easy to use 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 twopiece 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.