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Key Differences
| Product Type |
|
|
| Mixed Viscosity | Brushable | Dough |
| Pot Life | 18 minutes | 90 minutes |
| Shore D Hardness | — | 85 |
| Shore A Hardness | 40 | — |
| Specific Volume | 27 cu. in./lb. | 17.3 cu. in./lb. |
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 | Free Form™ Habitat™ Fire Safe™ | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Brushable | Dough |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 100A:95B | 1A:1B |
| Pot Life | 18 minutes | 90 minutes |
| Thin Film Recoat Time | 60 minutes | — |
| Cure Time | 16 hours | 16 hours |
| Shore D Hardness | — | 85 |
| Shore A Hardness | 40 | — |
| Specific Gravity | 1.025 g/cc | 1.44 g/cc |
| Specific Volume | 27 cu. in./lb. | 17.3 cu. in./lb. |
| Color | Grey | Grey |
| Die C Tear Strength | 67 pli | — |
| Tensile Strength | 420 psi | — |
| Elongation @ Break | 577 % | — |
| Shrinkage | <.001 in. / in. | — |
| Heat Deflection Temp | — | 160 °F |
| Heat Deflection With Post Cure | — | 212 °F |
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.
Free Form™ Habitat™ Fire Safe™
Free Form™ Habitat™ Fire Safe™ epoxy putty is a high density epoxy sculpting putty that is flame rated (E84, Class A). Habitat™ Fire Safe™ is solvent-free and contains no VOC’s. Working time is 90 minutes and cure time is 16 hours at room temperature (73° F/23° C). Epoxy cures to a very hard, flame and heat resistant material that is easily painted. Habitat™ Fire Safe™ does not contain any carcinogens (cancer causing agents).