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Key Differences
| Product Type |
|
|
| Mixed Viscosity | 3,400 cps | 800 cps |
| Mix Ratio By Volume | 2A:1B | N/A (gram scale required) |
| Pot Life | 15 minutes | 3 minutes |
| Cure Time | 16 hours | 20 minutes |
| Shore D Hardness | — | 50 |
| Shore A Hardness | 44 | — |
| Color | Beige | Black |
| Tensile Strength | 300 psi | 1,800 psi |
| Elongation @ Break | 400 % | 125 % |
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
| PMC™-744 | TASK™ 13 | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 3,400 cps | 800 cps |
| Mix Ratio By Volume | 2A:1B | — |
| Mix Ratio By Weight | 2A:1B | 100A:120B |
| Pot Life | 15 minutes | 3 minutes |
| Cure Time | 16 hours | 20 minutes |
| Shore D Hardness | — | 50 |
| Shore A Hardness | 44 | — |
| Specific Gravity | 1.01 g/cc | 1.15 g/cc |
| Specific Volume | 27.5 cu. in./lb. | 24.1 cu. in./lb. |
| Color | Beige | Black |
| Die C Tear Strength | 90 pli | — |
| Tensile Strength | 300 psi | 1,800 psi |
| Elongation @ Break | 400 % | 125 % |
| 100% Modulus | 90 psi | — |
| Shrinkage | < .001 in. / in. | 0.005 in. / in. |
Product Description
PMC™-744
PMC™-744 has been used for years by mold making professionals to cast plaster, concrete, resins, etc. It is excellent for making molds that are strong, durable and dimensionally stable. Low viscosity ensures fine detail reproduction.
TASK™ 13
TASK™ 13 is a fast setting two-component urethane that cures quickly to black semi-rigid plastic. TASK™ 13 has a pot life of 3 minutes and demold time of 20 minutes.
With a Shore value of 50D, these semi-rigid plastics are used for a variety of industrial applications including fast mold making, fast model duplication, prototyping, durable miniatures, black props and special effects, or making parts that are impact resistant. Fully cured castings are tough, durable and chemical resistant.
For Best Results… Do not cast TASK™ 13 into platinum cure (addition cure) silicone molds.