What do you use to seal paint?

[Emerald]

I have some cancery year 4 TEs. I'm going to airbrush over their cancer spots, but I'm unsure of what to use to seal the paint. What would you customizers suggest? Thank you so much for any advice.

[CloudyGlow]

I use mod podge.  But I don't think that would work in your case because it is obvious when part of a pony is covered with it and another part isn't.  And I don't think you want to cover your whole pony in modge podge if it only needs some touch ups.

Going to watch this thread

[sd_dreamcrystal]

Some use Mod Podge, others use a spray sealant called Mr. Super Clear or Testors Dullcote. I don't recommend Mod Podge for a whole sealing due to the stuff if water for some reason sits on it.