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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 1,500 cps | 5,400 cps |
| Pot Life | 30 minutes | 5 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 40 | 85 |
| Color | Off White | Amber |
| Die C Tear Strength | 85 pli | 175 pli |
| Tensile Strength | 490 psi | 3,400 psi |
| Elongation @ Break | 1,000 % | 121 % |
| 100% Modulus | 73 psi | 700 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
| ReoFlex™ 40 | URE-BOND™ II | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 1,500 cps | 5,400 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:92B |
| Pot Life | 30 minutes | 5 minutes |
| Handling Time | — | 60 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 40 | 85 |
| Specific Gravity | 1.02 g/cc | 1.1 g/cc |
| Specific Volume | 27.2 cu. in./lb. | 25 cu. in./lb. |
| Color | Off White | Amber |
| Die C Tear Strength | 85 pli | 175 pli |
| Tensile Strength | 490 psi | 3,400 psi |
| Elongation @ Break | 1,000 % | 121 % |
| 100% Modulus | 73 psi | 700 psi |
| Shrinkage | <.001 in. / in. | 0.0038 in. / in. |
Product Description
ReoFlex™ 40
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.
URE-BOND™ II
URE-BOND™ II is a premium performance urethane adhesive compound that offers a strong flexible bond between many different surfaces. URE-BOND™ is ideal for adhering polyurethane rubber and other polymer products to many types of substrates (such as plaster, wood, cement, stone) and non-porous materials (such as glass, hard plastics and a variety of metals). URE-BOND™ II has also been used to repair torn polyurethane molds on a limited basis (with proper surface preparation). Working time is 5 minutes at room temperature (73° F / 23° C). Once mixed and applied, URE-BOND™ takes about 60 minutes to cure and yields a strong, flexible bond.