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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 4,250 cps | 500 cps |
| Pot Life | 15 minutes | 1.5 minutes |
| Cure Time | 75 minutes | 2 hours |
| Shore A Hardness | 25 | — |
| Specific Volume | 20.6 cu. in./lb. | 60 cu. in./lb. |
| Color | Light Blue | White |
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™ 25 | FOAM-iT!™ 26 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 4,250 cps | 500 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 100A:130B | 100A:90B |
| Pot Life | 15 minutes | 1.5 minutes |
| Tack Free Time | — | 20 minutes |
| Cure Time | 75 minutes | 2 hours |
| Shore A Hardness | 25 | — |
| Expansion (approximate) | — | 2 times |
| Foam Density | — | 26 lb/ft³ |
| Specific Gravity | 1.34 g/cc | 0.42 g/cc |
| Specific Volume | 20.6 cu. in./lb. | 60 cu. in./lb. |
| Color | Light Blue | White |
| Die B Tear Strength | 40 pli | — |
| Tensile Strength | 240 psi | — |
| Elongation @ Break | 250 % | — |
| 100% Modulus | 100 psi | — |
| Shrinkage | 0.0025 in. / in. | — |
| Useful Temperature (min) | -65 °F | — |
| Useful Temperature (max) | 400 °F | — |
Product Description
OOMOO™ 25
No Vacuuming – No Scale – Easy To Use . . . OOMOO™ 25 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 a low viscosity for easy mixing and pouring . . . vacuum degassing is not necessary. This product cures at room temperature with negligible shrinkage. OOMOO™ 25 has a 15-minute pot life and 75-minute 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™ 25 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.
FOAM-iT!™ 26
Smooth-On’s FOAM-iT!™ Series are two-component water blown rigid foams that are versatile and easy to use. FOAM-iT!™ products are available in 3lb., 4 lb., 5 lb., 8 lb., 10 lb.,15 lb. or 26 lb. per cubic foot densities. Parts A and B are measured and mixed in equal amounts by volume. The mixture is then poured into a mold or other form (apply release agent if necessary). The mixture will expand many times original volume (depending on which FOAM-iT!™ product you are using) and develop a uniform cell structure. FOAM-IT!™ 26 is tack-free in about 4 - 6.5 minutes, developing handling strength in 20 minutes and full cure in 2 hours. FOAM-iT!™ 26 can be cast in blocks as a machinable prototype modeling board.
All FOAM-iT!™ products can be used as a straight casting material, backfill material for hollow castings (adds structural strength) or as an encapsulation material, etc. They can be color pigmented with SO-Strong™, UVO™ or IGNITE™ colorants and are used for a variety of art/ craft, industrial design and special effects applications.