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Key Differences
| Product Type |
|
|
| Mixed Viscosity | Dough | 4,400 cps |
| Mix Ratio By Volume | 1A:1B | N/A (gram scale required) |
| Shore D Hardness | 50 | 88 |
| Specific Volume | 61.6 cu. in./lb. | 17.6 cu. in./lb. |
| Color | Grey | Metal Gray |
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™ AIR | TASK™ 18 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | Dough | 4,400 cps |
| Mix Ratio By Volume | 1A:1B | — |
| Mix Ratio By Weight | 1A:1B | 26A:100B |
| Pot Life | — | 20 minutes |
| Cure Time | — | 16 hours |
| Shore D Hardness | 50 | 88 |
| Specific Gravity | 0.45 g/cc | 1.57 g/cc |
| Specific Volume | 61.6 cu. in./lb. | 17.6 cu. in./lb. |
| Color | Grey | Metal Gray |
| Tensile Strength | — | 3,250 psi |
| Tensile Modulus | — | 514,000 psi |
| Elongation @ Break | — | 1 % |
| Compressive Strength | — | 8,420 psi |
| Compressive Modulus | — | 97,300 psi |
| Flexural Strength | — | 10,700 psi |
| Flexural Modulus | — | 86,000 psi |
| Shrinkage | — | 0.0006 in. / in. |
| Heat Deflection Temp | 140 °F | 149 °F |
| Buoyant Force | 10.4 lb/ft³ | — |
Product Description
Free Form™ AIR
Free Form™AIR is an extremely lightweight epoxy putty suitable for an infinite variety of industrial and art-related applications. This is a low-odor, low shrinkage putty that is unique, inexpensive and easy to use. Free Form™AIR is mixed by hand with a 1A:1B by volume or weight mix ratio. It offers a long working time and cures overnight at room temperature to a hard, rigid epoxy that is very strong. Cured Free Form™AIR is so lightweight, it will float in water. It can be sanded, shaped, and drilled. It will readily accept any paint. Free Form can also be color pigmented with UVO™ or Ignite™ colorants.
TASK™ 18
TASK™ 18 is a relatively low viscosity aluminum filled urethane casting resin that was developed specifically for making short run vacuum forming or thermoforming molds.
When Parts A and B are mixed in proper proportion, TASK™ 18 cures overnight at room temperature with negligible shrinkage to a very hard plastic that has a very high compressive and flexural strength. Cured TASK™ 18 can be polished, machined, drilled, painted, etc. TASK™ 18 is also used to make industrial production parts, prototype parts and tracing patterns.