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 from prototype to showstopper!

FAST DURABLE - Cures in just 3.5 hours to a hard, scuff-resistant shell that protects your masterpiece.
UNIVERSAL COMPATIBILITY - Works seamlessly on SLA, SLS, PLA, ABS, Laywoo, and powder prints—one coat to rule them all.
PRECISION MIXING ZERO WASTE - 2:1 volume ratio with included measuring cup and foam brush for effortless, mess-free application.
SMOOTH PERFECTION EVERY TIME - Self-leveling epoxy eliminates brush strokes for flawless 3D print finishes.
GLOSSY FINISH WITH CUSTOM FLAIR - Super shiny top coat that can be buffed or pigmented to match your unique style.

XTC-3D™ is a high-performance, clear epoxy coating designed to smooth and protect 3D printed parts across multiple materials. With a quick 10-minute working time and a 3.5-hour cure to a hard, impact-resistant finish (80D Shore Hardness), it self-levels to deliver a flawless glossy surface. Ideal for SLA, SLS, PLA, ABS, and more, it includes precise mixing tools for easy application and enhances durability while adding a professional shine.

Specifications

ASIN	B01BKSLI9M
Best Sellers Rank	#22,546 in Automotive ( See Top 100 in Automotive ) #297 in Automotive Paints & Primers
Date First Available	February 8, 2016
Item Weight	10.2 ounces
Item model number	xtc3d
Manufacturer	Smooth-On, Inc.
Product Dimensions	2 x 3.5 x 6.8 inches

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