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Key Differences
| Mixed Viscosity | 410 cps | 3,000 cps |
| Pot Life | 8.5 minutes | 3 minutes |
| Cure Time | 2 hours | 60 minutes |
| Shore D Hardness | 58 | 85 |
| Specific Volume | 41.3 cu. in./lb. | 17.3 cu. in./lb. |
| Tensile Modulus | 156,000 psi | 435,000 psi |
| Elongation @ Break | 1.6 % | 0.4 % |
| Compressive Strength | 3,070 psi | 9,000 psi |
| Compressive Modulus | 53,700 psi | 500,000 psi |
| Flexural Strength | 3,440 psi | 7,150 psi |
| Flexural Modulus | 164,300 psi | 980,000 psi |
| Shrinkage | 0.003 in. / in. | 0.0006 in. / in. |
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
| Feather Lite™ | Shell Shock™ FAST | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 410 cps | 3,000 cps |
| Mix Ratio By Volume | 1A:1B | 1A:4B |
| Mix Ratio By Weight | — | 1A:5B |
| Pot Life | 8.5 minutes | 3 minutes |
| Cure Time | 2 hours | 60 minutes |
| Shore D Hardness | 58 | 85 |
| Specific Gravity | 0.67 g/cc | 1.60 g/cc |
| Specific Volume | 41.3 cu. in./lb. | 17.3 cu. in./lb. |
| Color | Beige | Beige |
| Tensile Strength | — | 3,100 psi |
| Tensile Modulus | 156,000 psi | 435,000 psi |
| Ultimate Tensile | 2,160 psi | — |
| Elongation @ Break | 1.6 % | 0.4 % |
| Compressive Strength | 3,070 psi | 9,000 psi |
| Compressive Modulus | 53,700 psi | 500,000 psi |
| Flexural Strength | 3,440 psi | 7,150 psi |
| Flexural Modulus | 164,300 psi | 980,000 psi |
| Shrinkage | 0.003 in. / in. | 0.0006 in. / in. |
| Heat Deflection Temp | 140 °F | 135 °F |
Product Description
Feather Lite™
Feather Lite™ is a heavily filled low-density urethane casting resin. Cured plastic is lightweight (it floats in water!) and has a much lower density than other casting resins.
Feather Lite™ features a convenient 1A:1B by volume mix ratio and mixes easily (pre-mixing of parts A & B is necessary). Cured plastic is strong and can be carved, machined, drilled, sanded, etc. Feather Lite™ can be pigmented with SO-Strong™ color tints prior to casting and finished castings can be painted. And because this product is low-density, it yields more plastic per pound/kg. than other casting resins, the cost per casting is low. Feather Lite™ can be used for a variety of art or industrial design related applications including reproducing sculpture, making fishing lures, prototype model making, casting doll heads and figures, etc.
Shell Shock™ FAST
Shell Shock™ FAST is a thixotropic plastic that self thickens when mixed and can be brushed onto a variety of surfaces or into rubber molds. When Parts A and B are mixed in proper proportion (1A:4B by volume or 1A:5B by weight), material cures at room temperature with virtually no shrinkage to a hard, durable plastic that exhibits good compressive and flexural strength. Fully cured castings are rigid and can be sanded, primed and painted. Color effects are possible by adding SO-Strong™ Color Tints.