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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 1,800 cps | 80 cps |
| Pot Life | 50 minutes | 3 minutes |
| Cure Time | 16 hours | 10 minutes |
| Shore D Hardness | — | 70 |
| Shore A Hardness | 60 | — |
| Color | Off White | White |
| Tensile Strength | 782 psi | 3,000 psi |
| Elongation @ Break | 581 % | 5 % |
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™ 60 | Smooth-Cast™ 300 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 1,800 cps | 80 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:90B |
| Pot Life | 50 minutes | 3 minutes |
| Cure Time | 16 hours | 10 minutes |
| Shore D Hardness | — | 70 |
| Shore A Hardness | 60 | — |
| Specific Gravity | 1.04 g/cc | 1.05 g/cc |
| Specific Volume | 26.7 cu. in./lb. | 26.4 cu. in./lb. |
| Color | Off White | White |
| Die C Tear Strength | 132 pli | — |
| Tensile Strength | 782 psi | 3,000 psi |
| Tensile Modulus | — | 139,500 psi |
| Elongation @ Break | 581 % | 5 % |
| 100% Modulus | 256 psi | — |
| Compressive Strength | — | 4,000 psi |
| Compressive Modulus | — | 45,800 psi |
| Flexural Strength | — | 4,510 psi |
| Flexural Modulus | — | 128,000 psi |
| Shrinkage | <.001 in. / in. | 0.01 in. / in. |
| Heat Deflection Temp | — | 120 °F |
Product Description
ReoFlex™ 60
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™ 300
The Smooth-Cast™ 300 Series of liquid plastics are ultra-low viscosity casting resins that yield castings that are bright white and virtually bubble free. Vacuum degassing is not necessary. They offer the convenience of a 1A:1B by volume or 100A:90B by weight mix ratio. The differences between them are pot life and demold time.
These resins readily accept fillers (such as URE-FIL™ 3 ) and can be colored with SO-Strong™ or Ignite™ color tints (Smooth-Cast™ 325 series accepts pigments better than the Smooth Cast™ 300 series). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth-Cast™ 300 Series Liquid Plastics include reproducing small to medium size sculptures, making prototype models, special effect props and decorative jewelry.
Those interested in making roto cast pieces should refer to the Smooth-Cast™ 65D technical bulletin.