I like to make up holsters and various pieces with a "faded" or "sunburst" stain pattern. For example, I'll stain (by spraying) a piece yellow using Fiebing's Pro Dye, allow it to set a while, and then airbrush around the outside using a darker brown color, and finally finish it up by airbrushing a really dark edge (usually black) on it. It will look really good at that point, but after 24 hours or so the colors bleed or blend together more than I like, resulting in a more muted color scheme. If I do a nice, dark, black edge the following day it's not so nice and dark anymore.
What are some ways I can help avoid the colors merging together so much? Should I mist a coat of Resolene or Tan-Kote on the piece in between each color step...or something like that?
I have attached an example of what I'm talking about; however, it looks pretty good here but didn't look quite as good the following day.