Buy some Krylon Fusion (I recommend it), and a clear coating.
Completely take apart the guitar. I know the GH guitar components can be taken out completely with a screwdriver, and the RB1 strat. Don't know about newer variations.
Remember to get some painter's tape (the blue kind) if there's an area you don't want painted (or you could get creative and stencil some areas out).
Just remember how to put everything back together
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