Always wanted to do this. It took me 7 days to prep but I just got done painting with rustoleum 2x and spraymax 2k clear. 150 bucks total. Not perfect, but mine. :
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Spraymax 2K Clear Coat (2 stores) see the best price »
SPRAY MAX 2K CLEAR COAT – Custom-Ebike
SprayMax 3680061 2K Glamour High Gloss Clear Coat 11.8 oz Aerosol Spray Can USC | eBay