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Key Differences
| Shore D Hardness | — | 73 |
| Shore A Hardness | 90 | — |
| Specific Volume | 17.9 cu. in./lb. | 34.6 cu. in./lb. |
| Color | Light Brown | Grey |
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
| Free Form™ Habitat™ Flex FR | Free Form™ AIR Fire Safe | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Dough | Dough |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 1A:1B | — |
| Pot Life | 90 minutes | — |
| Cure Time | 24 hours | — |
| Shore D Hardness | — | 73 |
| Shore A Hardness | 90 | — |
| Specific Gravity | 1.55 g/cc | 0.8 g/cc |
| Specific Volume | 17.9 cu. in./lb. | 34.6 cu. in./lb. |
| Color | Light Brown | Grey |
| Heat Deflection Temp | — | 140 °F |
Product Description
Free Form™ Habitat™ Flex FR
Free Form™ Habitat™ Flex FR Epoxy Putty is a mix-and-apply-by-hand putty that is that is certified flame resistant (E84, Class A) and is used to create display elements that are semi-rigid and extremely tough. It is also used for industrial bonding applications. Habitat™ Flex FR is solvent free and contains no VOC’s. Working time is 90 minutes and handling time is 24 hours at room temperature (73°F/23°C). Cured epoxy has some flexibility with excellent impact resistance and abrasion resistance.
Habitat™ Flex FR forms a permanent bond to a variety of surfaces including foam, steel and stainless steel, wood, PVC, ABS plastic, concrete and more. It withstands freeze/thaw cycles for exterior applications. When using as an adhesive do not use folding powder. It is easy to paint with acrylic paints or stains. Use to make perfectly detailed tree branches, planks and other themed elements for zoos and amusement parks. Because finished elements are semirigid, reptiles and birds can comfortably grip them without affecting the material.
Use with or without Habitat™ Folding Powder™ – mix equal parts A+B and apply Habitat™ Flex FR. For thickening, add Folding Powder™ into epoxy putty. Folding Powder™ reduces stickiness and makes the epoxy more handleable. Once putty is applied, it can be stamped with a silicone rubber stamp to create repeating patterns with intricate detail over a large surface area. Surface can be smoothed with alcohol or water. New Habitat™ Flex FR will bond to cured Habitat™ Flex FR without delamination.
Free Form™ AIR Fire Safe
Free Form™ AIR Fire Safe is a lightweight epoxy putty that certifies to the highest flame rating available (E84, Class A). This is a low odor, low shrinkage putty that is unique, inexpensive and easy to use. Free Form™ AIR Fire Safe is mixed by hand with a 1A:1B by volume mix ratio. It offers a long working time and cures overnight at room temperature to a rigid epoxy that is very strong. It can be sanded, shaped and drilled. It will readily accept any paint. Free Form™ AIR Fire Safe can also be color pigmented with UVO™ or Ignite™ colorants.