Coloring Epoxy Resin

I use Tester’s model paint (a small from a toothpick) to add to my 5
Minute Epoxy to make background cushions for moonstones & opals.
Does anyone know if that would be considered an acrylic paint?

No, its an enamel paint. Acrylic is water soluble. I’m surprised
acrylic would actually work! Martina