One that's neither oil NOR alcohol based and is still very clear. And affordable (I can't do powdercoating at home even if I could justify the expense).
Minwax® Polycrylic it's water based and has a fairly low odor.
Josh
More info from a previous post
"minwax polyacrylic. cleans up with water, dries in 30 minutes. recoat every 30 minutes. I do about three coats then you can handle it in an hour and assemble the pedal. I let the pedal sit upside down on the knobs and the switches for 24 hours to cure. "
Thank you so much!