How is this better than other epoxy products? Specifically, west systems epoxy?

I don't think there's anything you can do with this that you couldn't do with WEST System if you were determined enough, but it certainly wouldn't be my first choice for smoothing a 3D print. This stuff is very runny by the standards of epoxy, which lends itself to very thin coats that are less likely to build up in small crevices and wash out fine details. That said I'm sure it's also nowhere near as good an adhesive.

Does this product effect the overall dimensions/tolerances of the print? Enlarge or shrink features?

It is a coating that adds appreciable thickness. It will enlarge all external dimensions and can cover up fine features if not used carefully. The effect on tolerance can be reduced by applying thin layers and sanding any remaining grain down.

Type of paint suggestions?

Acrylic / enamel paints work best.

This is a very random question, but can this epoxy also be used to seal cracks and knots in wood?

Our Tarbender may be a better choice for this - it is designed as a bar top epoxy, thought the XTC-3D will work as well, the Tarbender is a clearer material.

Smooth On Xtc 3d 3d Print Coating And Smoothing Epoxy

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Description

✨ Elevate your 3D prints with a pro-grade glossy armor! 🛡️

PRO GRADE CONVENIENCE - Includes measuring cup, foam brush, and stirring stick—plus expert tutorials to nail every pour.
FLAWLESS GLOSSY FINISH - Brush-stroke free, ultra-shiny top coat that elevates your 3D prints and cosplay props alike.
UNIVERSAL COMPATIBILITY - Seamlessly smooths SLA, SLS, PLA, ABS, Laywoo, and powder prints with a self-leveling epoxy.
DURABLE PROTECTIVE SHIELD - Cures in just 3.5 hours to a hard, 80D Shore impact-resistant coating that guards your prints.
FAST PRECISE APPLICATION - Mix 2A:1B volume ratio with a quick 10-minute working window for flawless coverage.

Smooth-On XTC-3D™ is a high-performance, clear epoxy coating designed to smooth and protect 3D printed parts across multiple materials. With a 2:1 mix ratio and a 10-minute working time, it self-levels to a glossy, impact-resistant finish in just 3.5 hours, making it ideal for professional-quality cosplay, prototyping, and display models.

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Smooth-On XTC-3D™ 3D Print Coating & Smoothing Epoxy - 6.4 oz

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