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Key Differences
| Pot Life | 20 minutes | 2.5 minutes |
| Cure Time | 90 minutes | 15 minutes |
| Shore D Hardness | 80 | 65 |
| Tensile Strength | 6,650 psi | 2,400 psi |
| Elongation @ Break | 6 % | 20 % |
| Shrinkage | 0.0025 in. / in. | 0.01 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™ 3 | Smooth-Cast™ 65D | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 150 cps | 120 cps |
| Mix Ratio By Volume | 1A:1B | 1A:1B |
| Mix Ratio By Weight | 115A:100B | 100A:93B |
| Pot Life | 20 minutes | 2.5 minutes |
| Cure Time | 90 minutes | 15 minutes |
| Shore D Hardness | 80 | 65 |
| Specific Gravity | 1.12 g/cc | 1.05 g/cc |
| Specific Volume | 24.7 cu. in./lb. | 26.4 cu. in./lb. |
| Color | White | White |
| Tensile Strength | 6,650 psi | 2,400 psi |
| Tensile Modulus | 290,000 psi | — |
| Elongation @ Break | 6 % | 20 % |
| Compressive Strength | 8,300 psi | — |
| Compressive Modulus | 78,000 psi | — |
| Flexural Strength | 9,500 psi | — |
| Flexural Modulus | 288,000 psi | — |
| Shrinkage | 0.0025 in. / in. | 0.01 in. / in. |
| Heat Deflection Temp | 134 °F | — |
Product Description
TASK™ 3
TASK™ 3 low viscosity, high performance casting 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 (115A:100B by weight) mix ratio.
TASK™ 3 is white. It 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). TASK™ Plastics are moderately priced and are available in trial kits, one-gallon, five-gallon, 55-gallon drum and totes.
› Click here for more TASK™ resin products.
Smooth-Cast™ 65D
The Smooth-Cast™ Semi-Rigid line of low-cost semi-rigid urethane casting resins cure quickly to semi-rigid plastics that offer excellent impact resistance. These plastics are easy-to-use (mix ratio is 1A:1B by volume) and have low viscosities for minimal bubble entrapment. Vibrant colors are possible by adding SO-Strong™, UVO™ or Ignite™ color pigments.
These semi-rigid plastics are good for making impact resistant prototypes, models, toys, props, climbing holds, etc.
NOTE: Smooth-Cast™ 57D and Smooth-Cast™ 65D are also suitable for rotational casting applications. Do not use other Smooth-Cast™ semi-rigid plastics for roto casting.