C
mpare
T
l
Key Differences
| Product Type |
|
|
| Mixed Viscosity | 30,000 cps | 2,000 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Shore A Hardness | 60 | 50 |
| Color | Green | Off White |
| Elongation @ Break | 270 % | 435 % |
| 100% Modulus | 280 psi | 152 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 | ReoFlex™ 50 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 30,000 cps | 2,000 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 100A:10B | 1A:1B |
| Pot Life | 45 minutes | 50 minutes |
| Cure Time | 16 hours | 16 hours |
| Shore A Hardness | 60 | 50 |
| Specific Gravity | 1.25 g/cc | 1.01 g/cc |
| Specific Volume | 22.2 cu. in./lb. | 27.4 cu. in./lb. |
| Color | Green | Off White |
| Die B Tear Strength | 110 pli | — |
| Die C Tear Strength | — | 120 pli |
| Tensile Strength | 650 psi | 580 psi |
| Elongation @ Break | 270 % | 435 % |
| 100% Modulus | 280 psi | 152 psi |
| Shrinkage | <.001 in. / in. | <.001 in. / in. |
| Useful Temperature (min) | -65 °F | — |
| Useful Temperature (max) | 450 °F | — |
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.
ReoFlex™ 50
ReoFlex™ urethane rubbers offer superior physical and performance properties for production casting of wax, plasters, and resins. ReoFlex™ urethanes are available in 20A, 30A, 40A, 50A and 60A Shore hardnesses and feature convenient one-to-one by volume mix ratios. Vacuum degassing is not necessary and ReoFlex™ rubbers cure with negligible shrinkage to a durable rubber that will last in production. ReoFlex™ “Wet” rubbers will shrink somewhat over time vs. “Dry” formulations.
ReoFlex™ mold rubbers are used for a variety of applications including making molds to reproduce sculpture and architectural elements, as well as for making special effects, toys and prototypes. Vibrant colors can be achieved by adding So-Strong™ Color Tints, available from Smooth-On.
Casting Concrete? Look into the VytaFlex™ series of urethane mold rubbers. VytaFlex™ urethanes were formulated specifically for casting concrete / pigmented concrete and feature Smooth-On’s exclusive ‘V-Polymer™’ technology.
FOR COMMERCIAL/INDUSTRIAL USE ONLY