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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 250 cps |
| Pot Life | 50 minutes | 5 minutes |
| Cure Time | 16 hours | 30 minutes |
| Shore D Hardness | — | 45 |
| Shore A Hardness | 50 | — |
| Color | Off White | Translucent White |
| Tensile Strength | 580 psi | 1,560 psi |
| Elongation @ Break | 435 % | 100 % |
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™ 45D | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 250 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:93B |
| Pot Life | 50 minutes | 5 minutes |
| Cure Time | 16 hours | 30 minutes |
| Shore D Hardness | — | 45 |
| Shore A Hardness | 50 | — |
| Specific Gravity | 1.01 g/cc | 1.10 g/cc |
| Specific Volume | 27.4 cu. in./lb. | 25.2 cu. in./lb. |
| Color | Off White | Translucent White |
| Die C Tear Strength | 120 pli | — |
| Tensile Strength | 580 psi | 1,560 psi |
| Elongation @ Break | 435 % | 100 % |
| 100% Modulus | 152 psi | — |
| Shrinkage | <.001 in. / in. | 0.007 in. / in. |
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™ 45D
The Smooth-Cast™ Semi-Rigid line of low-cost semi-rigid urethane casting resins cure quickly to semi-rigid plastics that offer exceptional strength and impact resistance.
New Formulations – New Look!
Smooth-Cast™ 45D is newly reformulated with a translucent white appearance and improved physical properties. All Smooth-Cast semi rigids are now mercury free and phthalate free. These plastics are easy-to-use (mix ratio is 1A:1B by volume) and have low viscosities for minimal bubble entrapment. Vibrant colors are possible by adding SO-Strong™, UVO™ or Ignite™ colorants.
These semi-rigid plastics are good for making impact resistant prototypes, models, toys, props, climbing holds, etc.