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.

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

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

Product ID: 26052547

⏳10 min working time

🎨Clear, brushstroke-free self-leveling coat

🛡️3.5 hr cure to impact-resistant finish

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Description

✨ Elevate your 3D prints to showroom quality with XTC-3D™!

FAST DURABLE - Cures in just 3.5 hours to a tough 80D Shore hardness impact-resistant shell.
PRECISION MIXING - Simple 2A:1B volume ratio for consistent, reliable results every project.
UNIVERSAL COMPATIBILITY - Perfect for SLA, SLS, PLA, ABS, Laywoo, and powder prints—one coat fits all.
PROVEN INDUSTRY FAVORITE - Trusted by pros since 2016, ranked top 300 in automotive paints & primers.
FLAWLESS FINISH EVERY TIME - Self-leveling epoxy ensures a smooth, glossy surface without brush marks.

Smooth-On 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 durable, impact-resistant finish curing in 3.5 hours, it delivers professional-grade results that eliminate brush strokes and enhance print aesthetics.

Specifications

ASIN	B01BKSLI9M
Best Sellers Rank	#16,812 in Automotive ( See Top 100 in Automotive ) #254 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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₹ 4094

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