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Key Differences
| Mixed Viscosity | 4,250 cps | 30,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 30 minutes | 45 minutes |
| Cure Time | 6 hours | 24 hours |
| Color | Lavender | Translucent |
| Die B Tear Strength | 40 pli | 110 pli |
| Tensile Strength | 240 psi | 575 psi |
| Elongation @ Break | 250 % | 400 % |
| 100% Modulus | 100 psi | 65 psi |
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
| OOMOO™ 30 | Mold Max™ 27T | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 4,250 cps | 30,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 100A:130B | 100A:10B |
| Pot Life | 30 minutes | 45 minutes |
| Cure Time | 6 hours | 24 hours |
| Shore A Hardness | 30 | 27 |
| Specific Gravity | 1.34 g/cc | 1.11 g/cc |
| Specific Volume | 20.6 cu. in./lb. | 25.0 cu. in./lb. |
| Color | Lavender | Translucent |
| Die B Tear Strength | 40 pli | 110 pli |
| Tensile Strength | 240 psi | 575 psi |
| Elongation @ Break | 250 % | 400 % |
| 100% Modulus | 100 psi | 65 psi |
| Shrinkage | 0.0025 in. / in. | 0.002 in. / in. |
| Useful Temperature (min) | -65 °F | -65 °F |
| Useful Temperature (max) | 400 °F | 400 °F |
Product Description
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.
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.