Al,
Lay down your first color then stick it in the oven for about 15 minutes at about 150*F
It should then be flashed enough to touch. Lay down your next color and do the same again. Once you do your last color then bake at 250*F for the two hours. This is assuming your talking barreled actions and not stocks.
If you have any questions feel free to call and maybe I can help you better over the phone. 734-848-4689
Eddie Fosnaugh