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.

Xtc 3d 20 Mold Making And Special Effects Silicone Rubber

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Description

🖌️ Elevate your 3D prints from prototype to masterpiece—smooth, strong, and stunning every time!

MAXIMIZE EVERY DROP - Just 1oz covers 100 sq inches, making it a cost-effective must-have for hobbyists and pros alike.
DURABILITY MEETS DESIGN - Adds a tough, impact-resistant shell that’s heat-resistant up to 150°F, protecting your prints from wear and tear.
UNIVERSAL COMPATIBILITY - Works seamlessly with PLA, ABS, SLA, SLS, wood, foam, fabric, and more—one coat to rule them all.
EFFORTLESS CUSTOMIZATION - Once cured, sandable and paintable surface lets you unleash your creativity with colors and metallic effects.
FLAWLESS FINISH ZERO SANDING - Self-leveling epoxy fills layer lines for a pro-grade smoothness without the tedious sanding grind.

Smooth-On XTC-3D™ is a high-performance epoxy coating designed specifically for 3D printed objects. It self-levels with a simple 2:1 mix ratio, filling in layer lines to deliver a smooth, professional finish without sanding. Compatible with a wide range of materials including PLA, ABS, SLA, and more, it creates a durable, impact-resistant, moisture-proof shell that’s heat-resistant up to 150°F. Ideal for hobbyists and professionals, it’s sandable and paintable for further customization, with exceptional coverage efficiency—1oz covers 100 sq inches.

Specifications

ASIN	B01BKSLI9M
Are batteries included?	No
Best Sellers Rank	#287,334 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #4,580 in Paintwork
Brand	Smooth-On
Colour	Clear
Country of Origin	USA
Customer Reviews	4.4 4.4 out of 5 stars (310)
Date First Available	14 May 2024
Item Dimensions LxWxH	5.1 x 8.9 x 17.3 Centimeters
Item Height	6.8 Inches
Item Weight	290 g
Item Width	3.5 Inches
Item model number	xtc3d
Manufacturer	Smooth-On, Inc.
Model number	xtc3d
Net Quantity	6.4 Grams
Number of Memory Sticks	1
Product Dimensions	5.08 x 8.89 x 17.27 cm; 290 g
Special Feature	Versatile material compatibility, creates smooth finishes, allows color and metal effect customization
Specific Product Use	Craft, Woodworking, Furniture, Repair, Wall Repair, Leatherworking

Reviews

J**E

A must-have

7.02.2024

D**.

An interesting product

24.09.2024

S**N

Nice product

14.08.2025

H**D

Perfect for sealing 3D prints!

2.11.2018

A**Y

It definitely smooths prints but...

28.09.2024

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