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Key Differences
| Mixed Viscosity | 1,500 cps | 3,000 cps |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 30 | 48 |
| Tensile Strength | 450 psi | 700 psi |
| 100% Modulus | 67 psi | 111 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™ 30 | Formlastic™ 48 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 1,500 cps | 3,000 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 100A:118B |
| Pot Life | 30 minutes | 25 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore A Hardness | 30 | 48 |
| Specific Gravity | 1.01 g/cc | 1.14 g/cc |
| Specific Volume | 27.5 cu. in./lb. | 24.3 cu. in./lb. |
| Color | Off White | Off White |
| Die C Tear Strength | 82 pli | 98 pli |
| Tensile Strength | 450 psi | 700 psi |
| Elongation @ Break | 1,000 % | 1,250 % |
| 100% Modulus | 67 psi | 111 psi |
| Shrinkage | <.001 in. / in. | <0.001 in. / in. |
Product Description
ReoFlex™ 30
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.
Formlastic™ 48
Formlastic™ 48 urethane is a durable mold rubber made for production casting of concrete. It features a low viscosity for easy mixing and pouring and cures with minimal bubble entrapment. Mix ratio is 1A:1B by volume, pot life is 25 minutes and the rubber cures with an ultimate Shore hardness of Shore 48A. Cured rubber is dimensionally stable (low shrinkage), offers good wear resistance and will render color accurate concrete castings.
IMPORTANT: This product does not contain crystalline silica.