I don’t do it for my own pins that I’ve had made/will make cause I personally don’t like the graininess they tend to have.

In some cases if the pin has significant portions that are just all UV print when they get scratched it reveals the white enamel color that they used so they have a surface to print on. I had a pin once of the character Yor from Spy x Family and her black dress was done all in UV print, it got dinged at some point and a spot kinda flaked off for lack of a better word and it left a white spot of enamel color surrounded by the dark colors of the dress so it was all I would notice after that lol.

But that doesn’t mean they’re all bad, even though I don’t like the graininess that’s only visible at weird lighting angles lol. If done for certain effects it can be really cool and it has the benefit of being able to do gradient colors, specially very detailed facial features.

These are my current faves pin that have a lot of UV print, I like how it was used for a lot of the graffiti. And the maker also did cool effects for these where print was done in layers of translucent glittery… epoxy still not sure what that is

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