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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 80 cps |
| Pot Life | 50 minutes | 20 minutes |
| Cure Time | 16 hours | 4 hours |
| Shore D Hardness | — | 70 |
| Shore A Hardness | 50 | — |
| Tensile Strength | 580 psi | 3,000 psi |
| Elongation @ Break | 435 % | 8 % |
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
| ReoFlex™ 50 | Smooth-Cast™ 322 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 80 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:90B |
| Pot Life | 50 minutes | 20 minutes |
| Cure Time | 16 hours | 4 hours |
| Shore D Hardness | — | 70 |
| Shore A Hardness | 50 | — |
| Specific Gravity | 1.01 g/cc | 1.05 g/cc |
| Specific Volume | 27.4 cu. in./lb. | 26.4 cu. in./lb. |
| Color | Off White | Off White |
| Die C Tear Strength | 120 pli | — |
| Tensile Strength | 580 psi | 3,000 psi |
| Tensile Modulus | — | 134,000 psi |
| Elongation @ Break | 435 % | 8 % |
| 100% Modulus | 152 psi | — |
| Compressive Strength | — | 3,550 psi |
| Compressive Modulus | — | 40,300 psi |
| Flexural Strength | — | 3,500 psi |
| Flexural Modulus | — | 110,000 psi |
| Shrinkage | <.001 in. / in. | 0.007 in. / in. |
| Heat Deflection Temp | — | 140 °F |
Product Description
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
› Click here for more ReoFlex™ rubber products.
Smooth-Cast™ 322
The Smooth-Cast™ 320 Series consists of ultra-low viscosity casting resins that yield virtually bubble-free off-white castings. The Smooth-Cast™ 320 resins are sister products to our popular Smooth-Cast™ 300 Series of bright white plastics, but are easier to color using SO-Strong™ or Ignite™ color tints. Smooth-Cast™ 320 series is easy to mix and pour, offering the convenience of a 1A:1B by volume or 100A : 90B by weight mix ratio.
The Smooth-Cast™ 320 Series resins readily accept pigments and fillers (such as URE-FIL™ 3, 5 and 7 from Smooth-On). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth-Cast™ 320 Series resins include reproducing small to medium size sculptures, making prototype models, special effect props, decorative jewelry and taxidermy (bones, antlers, teeth etc.).