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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 1,800 cps | 11,000 cps |
| Pot Life | 50 minutes | 20 minutes |
| Cure Time | 16 hours | 3 hours |
| Shore A Hardness | 60 | 40 |
| Color | Off White | Translucent |
| 100% Modulus | 256 psi | 108 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™ 60 | Mold Star™ 40T | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 1,800 cps | 11,000 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | 1A:1B |
| Pot Life | 50 minutes | 20 minutes |
| Cure Time | 16 hours | 3 hours |
| Shore A Hardness | 60 | 40 |
| Specific Gravity | 1.04 g/cc | 1.12 g/cc |
| Specific Volume | 26.7 cu. in./lb. | 24.7 cu. in./lb. |
| Color | Off White | Translucent |
| Die B Tear Strength | — | 140 pli |
| Die C Tear Strength | 132 pli | — |
| Tensile Strength | 782 psi | 656 psi |
| Elongation @ Break | 581 % | 500 % |
| 100% Modulus | 256 psi | 108 psi |
| Shrinkage | <.001 in. / in. | <.001 in. / in. |
| Useful Temperature (min) | — | -65 °F |
| Useful Temperature (max) | — | 450 °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.
Mold Star™ 40T
Mold Star™ 14T, 19T, 20T, 31T and 40T are easy to use translucent platinum cure silicones that are mixed 1A:1B by volume (no weighing scale necessary). They feature a relatively low viscosity and vacuum degassing is not required for most applications. Mold Star™ T Series silicone cures to a soft, strong rubber that is tear resistant and exhibits very low long term shrinkage. Molds made with Mold Star™ silicone will last a long time in your mold library and are good for casting wax, gypsum, resins, and other materials. An infinite number of color effects can be achieved by adding Silc Pig™ silicone pigments or Cast Magic™ effects powders.
Properly cured Mold Star™ 40T complies with 21 CFR 177.2600 "Rubber articles intended for repeated use" for use with dry food and aqueous food only. This material has been tested by an independent laboratory to comply with 21 CFR 177.2600(e), water extractable limits for repeated use in aqueous food. This material is not intended for repeated use in contact with fatty foods.