I love playing with resin, mica powders and “neon” or blacklight powders. What surprised me while experimenting with both pigments is just how well they work together. There is some impact on both sides. The neons may slightly dull the brightness of the micas, and the micas may dull the “neon” or blacklight effects. The same is true of “glow in the dark” powders, but I don’t use them as frequently.
This picture is of resin tinted with plain white fluorescent powder under black light. Please keep in mind that it’s kind of hard to get a good photograph of these kinds of resin pigments.
This picture is the same white neon pigment with black mica (under regular light). There is very little impact at all under regular light. There is a slight difference between this and mica alone.
This photo is of the same black mica powder pigment alone.
As you can see there is a difference, but it’s still a good dark black. Under black light, the effect is not as bright as white alone, but it is still UV-light reactant.
Black mica with yellow neon fluorescent pigment. You can tell that there is a slight difference in tone, but the black is still solid.
Black mica with yellow neon fluorescent pigment under black light.