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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 4,250 cps | 35,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 30 minutes | 60 minutes |
| Cure Time | 6 hours | 16 hours |
| Shore A Hardness | 30 | 40 |
| Color | Lavender | Water Clear Translucent |
| Die B Tear Strength | 40 pli | 120 pli |
| Tensile Strength | 240 psi | 800 psi |
| Elongation @ Break | 250 % | 400 % |
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 | SORTA-Clear™ 40 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 4,250 cps | 35,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 100A:130B | 100A:10B |
| Pot Life | 30 minutes | 60 minutes |
| Cure Time | 6 hours | 16 hours |
| Shore A Hardness | 30 | 40 |
| Specific Gravity | 1.34 g/cc | 1.08 g/cc |
| Specific Volume | 20.6 cu. in./lb. | 25.6 cu. in./lb. |
| Color | Lavender | Water Clear Translucent |
| Die B Tear Strength | 40 pli | 120 pli |
| Tensile Strength | 240 psi | 800 psi |
| Elongation @ Break | 250 % | 400 % |
| 100% Modulus | 100 psi | 90 psi |
| Shrinkage | 0.0025 in. / in. | <.001 in. / in. |
| Useful Temperature (min) | -65 °F | -65 °F |
| Useful Temperature (max) | 400 °F | 450 °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.
SORTA-Clear™ 40
SORTA-Clear™ Series rubbers are premium water clear translucent silicone rubbers (platinum catalyst) which cure at room temperature with negligible shrinkage. This product requires a gram scale for measuring parts A + B. SORTA-Clear™ 40 comes in Shore 40A hardness and features high tensile and tear strength.
SORTA-Clear™ silicones are ideal for making prototype, jewelry or other molds of any configuration where model visibility is important (i.e. extracting a model from the mold via cutting). Materials such as urethane, epoxy or polyester resins can then be cast into SORTA-Clear™ silicone without application of a release agent. Other materials such as wax and low melt metal alloys can also be cast into SORTA-Clear™. SORTA-Clear™ can be pigmented with SILC Pig™ silicone pigments.
SORTA Clear™ 40 silicone rubber is FOOD SAFE and can be used for culinary applications including casting chocolate and other confections.
Certified Skin Safe - Cured SORTA Clear™ 40 is skin safe and certified by an independent laboratory.