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Key Differences
| Pot Life | 50 minutes | 25 minutes |
| Cure Time | 16 hours | 48 hours |
| Shore A Hardness | 50 | 80 |
| Color | Off White | Light Amber |
| Die C Tear Strength | 120 pli | 200 pli |
| Tensile Strength | 580 psi | 900 psi |
| Elongation @ Break | 435 % | 750 % |
| 100% Modulus | 152 psi | 400 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™ 50 | PMC™-780 DRY | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 2,000 cps | 2,000 cps |
| Mix Ratio By Volume | 1A:1B | 2A:1B |
| Mix Ratio By Weight | 1A:1B | 2A:1B |
| Pot Life | 50 minutes | 25 minutes |
| Cure Time | 16 hours | 48 hours |
| Shore A Hardness | 50 | 80 |
| Specific Gravity | 1.01 g/cc | 1.02 g/cc |
| Specific Volume | 27.4 cu. in./lb. | 27.2 cu. in./lb. |
| Color | Off White | Light Amber |
| Die C Tear Strength | 120 pli | 200 pli |
| Tensile Strength | 580 psi | 900 psi |
| Elongation @ Break | 435 % | 750 % |
| 100% Modulus | 152 psi | 400 psi |
| Shrinkage | <.001 in. / in. | <.001 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.
PMC™-780 DRY
PMC™-780 is a premium performance urethane rubber that offers exceptional strength, durability and abrasion resistance. PMC™-780 DOES NOT CONTAIN MOCA – a known cancer causing agent and hazard. Mixed two parts A to one part B by weight or volume, PMC™-780 urethane pours easily and cures at room temperature with negligible shrinkage to a solid Shore 80A rubber.
Pick The One Best Suited For Your Application: Original PMC™-780 Dry does not exude oil. New PMC™-780 Wet contains a built in release agent to aid in demolding concrete. (Note: “wet” rubber has a higher net shrinkage value over time vs. “dry “ rubber.)