Originally Posted by repechage

Powder coating vs. wet paint has been debated here very often.
The chances of an inexpensive powder coat job being as effective at preventing corrosion as a professional wet coat paint job are not that great.
It's in the physics of the film thickness, and porosity of the coating layer vs. layers.
I have stripped three powder coat jobs, and have one to do. The one on the to do list I know will have rust below. the others did not SHOW rust, but it was really evident upon chemical stripping.
The failure was from small essentially microscopic holes or bubbles in the coating that allowed moisture to enter over time. Also, maintaining film thickness at sharp edges is not going to happen unless the part is well over coated to the point of hiding detail, its in the physics of how the powder changed phase over time.
A multicoat powder job should be effective, but the chances of hiding detail rise much. And the costs increase.
Maybe on a lugless frame.