Has anyone used the spray.bike zinc coating before painting & primer?
I ask my coater to minimize the spray inside the clamps, seatpost, headtube, BB. He blocks them off when spraying the powder. Your coater will likely put bolts in the bosses/fender eyes, clamps etc.
I might have him mask the insides of the rear dropouts. I have had them come back wtih so much build up in the dropouts that the wheel didn’t sit straight or the axle wouldn’t go into the slot. In those cases, I simply file the powder coat down to fit.
I ream/face after it comes back from powder so it’s not terrible if there is some overspray.
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