C
mpare
T
l
Key Differences
| Product Type |
|
|
| Mixed Viscosity | 350 cps | 5,000 cps |
| Mix Ratio By Volume | 2A:1B | N/A (gram scale required) |
| Pot Life | 10 minutes | 3 hours |
| Barcol 935 Hardness | — | 93 |
| Shore D Hardness | 80 | — |
| Specific Volume | 25.1 cu. in./lb. | 18.22 cu. in./lb. |
| Color | Clear (Slightly Yellow In Thick Sections) | Off White |
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
| XTC-3D™ | EpoxAcast™ 650 + HT Hardener | |
|---|---|---|
| Product Type |
|
|
| Mixed Viscosity | 350 cps | 5,000 cps |
| Mix Ratio By Volume | 2A:1B | — |
| Mix Ratio By Weight | 100A:42B | 100A:10B |
| Pot Life | 10 minutes | 3 hours |
| Thin Film Working Time | 20 minutes | — |
| Thin Film Recoat Time | 90 minutes | — |
| Tack Free Time | 2 hours | — |
| Cure Time | 3.5 hours | Twenty Four Hours Followed By Post Cures |
| Barcol 935 Hardness | — | 93 |
| Shore D Hardness | 80 | — |
| Specific Gravity | 1.09 g/cc | 1.52 g/cc |
| Specific Volume | 25.1 cu. in./lb. | 18.22 cu. in./lb. |
| Color | Clear (Slightly Yellow In Thick Sections) | Off White |
| Tensile Modulus | — | 1,079,000 psi |
| Ultimate Tensile | — | 6,900 psi |
| Tensile Elongation | — | 0.82 % |
| Compressive Strength | — | 15,980 psi |
| Compressive Modulus | — | 134,400 psi |
| Flexural Strength | — | 10,850 psi |
| Flexural Modulus | — | 775,000 psi |
| Shrinkage | — | 0.007 in. / in. |
| Heat Deflection Temp | — | 187 °F |
Product Description
XTC-3D™
XTC-3D™ is a protective coating for smoothing and finishing 3D printed parts. Two liquids are mixed together and brushed onto any 3D print. Coating self-levels and wets out uniformly without leaving brush strokes. Working time is 10 minutes and cure time is about 4 hours (depending on mass and temperature). XTC-3D™ cures to a hard, impact resistant coating that can be sanded, primed and painted. Adding colors and metal effects is easy.
EpoxAcast™ 650 + HT Hardener
EpoxAcast™ 650 is a mineral filled general purpose casting epoxy that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment.EpoxAcast™ 650 is used for making hard dies for metal stamping as well as patterns and fixtures. It is also used for electrical encapsulation to extend the life cycles and enhance the performance of potted electronic devices. The high compressive strength of EpoxAcast™ 650 makes it ideal for making stamping dies for production pressing of metal ornaments.