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Key Differences
| Product Type |
|
|
| Mixed Viscosity | Dough | 100 cps |
| Pot Life | 90 minutes | 2.5 minutes |
| Cure Time | 24 hours | 15 minutes |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 90 | — |
| Specific Volume | 17.9 cu. in./lb. | 27.7 cu. in./lb. |
| Color | Light Brown | Black |
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 | Smooth-Cast™ ONYX™ FAST | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Dough | 100 cps |
| Mix Ratio By Volume | 1A:1B | 100A:100B |
| Mix Ratio By Weight | 1A:1B | 120A:100B |
| Pot Life | 90 minutes | 2.5 minutes |
| Cure Time | 24 hours | 15 minutes |
| Shore D Hardness | — | 80 |
| Shore A Hardness | 90 | — |
| Specific Gravity | 1.55 g/cc | 1.09 g/cc |
| Specific Volume | 17.9 cu. in./lb. | 27.7 cu. in./lb. |
| Color | Light Brown | Black |
| Tensile Strength | — | 5,840 psi |
| Tensile Modulus | — | 246,000 psi |
| Elongation @ Break | — | 4 % |
| Compressive Strength | — | 8,760 psi |
| Compressive Modulus | — | 77,400 psi |
| Flexural Strength | — | 8,280 psi |
| Flexural Modulus | — | 246,000 psi |
| Shrinkage | — | 0.010 in. / in. |
| Heat Deflection With Post Cure | — | 250 °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.
Smooth-Cast™ ONYX™ FAST
Smooth-Cast™ ONYX™ is a mercury-free urethane resin that cures at room temperature to a deep black, solid plastic. ONYX™ resins offer the convenience of a 1A:1B by volume mix ratio and have very low viscosities, so they are easy to mix and pour. ONYX™ resins have an ultimate Shore hardness of 80D and offer higher physical properties and higher heat resistance vs. other general purpose resins.ONYX™ FAST resin has a pot life of 2.5 minutes and a cure time of 10-15 minutes. ONYX™ FAST is a good choice for creating fast cold cast bronze, brass, copper, nickel/silver, etc. effects.