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Key Differences
| Product Type |
|
|
| Mixed Viscosity | Brushable | 3,000 cps |
| Cure Time | 16 hours | 1 hour |
| Shore A Hardness | 40 | 00-20 |
| Color | Grey | Translucent |
| Tensile Strength | 420 psi | 160 psi |
| Elongation @ Break | 577 % | 845 % |
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
| EZ-Mix™ 40 | Ecoflex™ 00-20 FAST | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Brushable | 3,000 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 100A:95B | 1A:1B |
| Pot Life | 18 minutes | 20 minutes |
| Thin Film Recoat Time | 60 minutes | — |
| Cure Time | 16 hours | 1 hour |
| Shore A Hardness | 40 | 00-20 |
| Specific Gravity | 1.025 g/cc | 1.07 g/cc |
| Specific Volume | 27 cu. in./lb. | 26 cu. in./lb. |
| Color | Grey | Translucent |
| Die B Tear Strength | — | 30 pli |
| Die C Tear Strength | 67 pli | — |
| Tensile Strength | 420 psi | 160 psi |
| Elongation @ Break | 577 % | 845 % |
| 100% Modulus | — | 8 psi |
| Shrinkage | <.001 in. / in. | <.001 in. / in. |
| Useful Temperature (min) | — | -65 °F |
| Useful Temperature (max) | — | 450 °F |
| Dielectric Strength | — | 350 volts/mil |
Product Description
EZ-Mix™ 40
EZ~MIX™ 40 is a brushable polyurethane rubber mold compound that mixes and applies easily. Two liquids (Part A and Part B) are measured and combined in equal amounts by volume (no scale is necessary). After a few minutes of mixing, EZ~MIX™ 40 is ready to be applied to a vertical surface with a brush. After a suitable thickness is attained (multiple layers), EZ~MIX™ 40 cures overnight with negligible shrinkage to a flexible, durable mold rubber. Following the application of a support shell, a rubber mold made with EZ~MIX™ 40 is suitable for casting a variety of materials including wax, gypsum, urethane/epoxy resins, concrete, cement, etc.
Ecoflex™ 00-20 FAST
Ecoflex™ rubbers are platinum-catalyzed silicones that are versatile and easy to use. Ecoflex™ rubbers are mixed 1A:1B by weight or volume and cured at room temperature with negligible shrinkage. Low viscosity ensures easy mixing and de-airing. Cured rubber is very soft, very strong and very “stretchy”, stretching many times its original size without tearing and will rebound to its original form without distortion.
Certified Skin Safe - Cured Ecoflex™ 00-20 FAST is skin safe and certified by an independent laboratory.