Let's skip the background as to why I painted plastic. Very long story (mil. buttstock problems fitting on Czechpoint Sporter VZ-58 receiver). The thin -single layer- of paint (Sherwin W.: Urethane Int/Ext.) dried really well, for hours, before using the stain. Added a single layer of Minwax (oil-based, yellow can) red mahogany. Matches the Czech 'beaver barf' handguards pretty well. This rifle has been inside air cond. rooms. * Six days drying so far seems like a really long time for a single layer of Minwax stain? The gun is now full-time under a rotating ceiling fan. Much of the surface now feels just a tiny bit tacky/sticky. The other areas feel dry.