C
mpare
T
l
Key Differences
| Product Type |
|
|
| Mixed Viscosity | Brushable | 25,000 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Pot Life | 20 minutes | 45 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 50 | 30 |
| Color | Off White | Pink |
| Elongation @ Break | 400 % | 300 % |
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
| Brush-On™ 50 | Mold Max™ 30 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Brushable | 25,000 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 100A:125B | 100A:10B |
| Pot Life | 20 minutes | 45 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 50 | 30 |
| Specific Gravity | 1.17 g/cc | 1.18 g/cc |
| Specific Volume | 23.7 cu. in./lb. | 23.5 cu. in./lb. |
| Color | Off White | Pink |
| Die B Tear Strength | — | 125 pli |
| Die C Tear Strength | 80 pli | — |
| Tensile Strength | 500 psi | 577 psi |
| Elongation @ Break | 400 % | 300 % |
| 100% Modulus | — | 110 psi |
| Shrinkage | <.001 in. / in. | 0.002 in. / in. |
| Useful Temperature (min) | — | -65 °F |
| Useful Temperature (max) | — | 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
Brush-On™ 50
Smooth-On’s Brush-On™ Series of mold rubbers are extremely versatile and are famous for their abrasion resistance and high tear strength. They have the convenience of a one-to-one mix ratio and are easy to mix and apply with a brush or spatula.
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™ 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.