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Key Differences
| Product Type |
|
|
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 60 | 20 |
| Color | Green | Light Pink |
| Elongation @ Break | 270 % | 512 % |
| 100% Modulus | 280 psi | 49 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
| Smooth‑Sil™ 960 | Mold Max™ 20 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 30,000 cps | 25,000 cps |
| Mix Ratio By Weight | 100A:10B | 100A:10B |
| Pot Life | 45 minutes | 45 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 60 | 20 |
| Specific Gravity | 1.25 g/cc | 1.18 g/cc |
| Specific Volume | 22.2 cu. in./lb. | 23.5 cu. in./lb. |
| Color | Green | Light Pink |
| Die B Tear Strength | 110 pli | 110 pli |
| Tensile Strength | 650 psi | 555 psi |
| Elongation @ Break | 270 % | 512 % |
| 100% Modulus | 280 psi | 49 psi |
| Shrinkage | <.001 in. / in. | 0.001 in. / in. |
| Useful Temperature (min) | -65 °F | -65 °F |
| Useful Temperature (max) | 450 °F | 400 °F |
| Dielectric Constant, 100Hz | — | 3.29 |
| Dielectric Strength | — | 330 volts/mil |
| Dissipation Factor, 100Hz | — | 0.005 |
| Volume Resistance | — | 8.29E+11 ohm |
| Volume Resistivity | — | 5.83E+13 ohm/cm |
Product Description
Smooth‑Sil™ 960
Smooth-Sil™ 960 is a Shore 60A platinum cure silicone rubber developed for a variety of industrial applications. Compared to other 60A platinum silicones, Smooth-Sil™ 960 has a relatively low viscosity and is easy to mix, de-air and pour. Silicone cures in 16 hours with negligible shrinkage to a firm rubber with high tensile and tear strength.
Smooth-Sil™ 960 offers good chemical and heat resistance, making this a good choice for production casting of resins and expanding foams. Because of its firmness, Smooth-Sil™ 960 molds are also used for spin casting. It is also used for embedding and electrical applications. Smooth-Sil™ 960 is suitable for food related applications.
Note: This product will not cure against surfaces containing sulfur, even when sealed.
Mold Max™ 20
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™ silicones 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.