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Key Differences
| Mixed Viscosity | 4,400 cps | 800 cps |
| Mix Ratio By Volume | N/A (gram scale required) | 1A:1B |
| Pot Life | 20 minutes | 7 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore D Hardness | 88 | 75 |
| Specific Volume | 17.6 cu. in./lb. | 25.9 cu. in./lb. |
| Color | Metal Gray | Tan |
| Tensile Strength | 3,250 psi | 5,200 psi |
| Tensile Modulus | 514,000 psi | 146,000 psi |
| Elongation @ Break | 1 % | 4 % |
| Compressive Strength | 8,420 psi | 5,570 psi |
| Compressive Modulus | 97,300 psi | 65,000 psi |
| Flexural Strength | 10,700 psi | 6,200 psi |
| Flexural Modulus | 86,000 psi | 182,500 psi |
| Shrinkage | 0.0006 in. / in. | 0.0031 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
| TASK™ 18 | TASK™ 6 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 4,400 cps | 800 cps |
| Mix Ratio By Volume | — | 1A:1B |
| Mix Ratio By Weight | 26A:100B | 1A:1B |
| Pot Life | 20 minutes | 7 minutes |
| Handling Time | — | 75 minutes |
| Cure Time | 16 hours | 24 hours |
| Shore D Hardness | 88 | 75 |
| Specific Gravity | 1.57 g/cc | 1.07 g/cc |
| Specific Volume | 17.6 cu. in./lb. | 25.9 cu. in./lb. |
| Color | Metal Gray | Tan |
| Tensile Strength | 3,250 psi | 5,200 psi |
| Tensile Modulus | 514,000 psi | 146,000 psi |
| Elongation @ Break | 1 % | 4 % |
| Compressive Strength | 8,420 psi | 5,570 psi |
| Compressive Modulus | 97,300 psi | 65,000 psi |
| Flexural Strength | 10,700 psi | 6,200 psi |
| Flexural Modulus | 86,000 psi | 182,500 psi |
| Shrinkage | 0.0006 in. / in. | 0.0031 in. / in. |
| Heat Deflection Temp | 149 °F | 162 °F |
Product Description
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.
TASK™ 6
TASK™ 6 low cost, high performance casting resin yields castings that are tan and virtually bubble free. This resin offers superior physical and performance properties compared to our popular Smooth-Cast™ Series of general purpose casting resins. Vacuum degassing is not necessary and it offers the convenience of a 1A:1B by volume or weight mix ratio.
TASK™ 6 has high tensile and flexural strength, as well as high flexural modulus. This plastic was formulated for a variety of industrial applications including pattern making and making prototype models. This resin is designed for casting in thicknesses up to ½” (1.27 cm).