racelook, your right about rust under the chips (as I stated in earlier post). But if the metal is prepped right, the better the powder coat bond (just like painting). If you do get chips. If repowder coating is not an option (like floor pan). Then you can feather the edges, and use paint to touch-up. Powder coating can also be color sanded and buffed to blend the touch-up...
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1970 T1 W/MassIVe 2913cc RAT/?EFI? w/direct fire (very soon) and 915 trans
1962 SC 1776cc SP 944NA brakes, 993 wheels
VKG