I'm looking for opinions on this one. I am getting my truck already for paint at a local garage and I have been doing most of the prep work. The guy at the garage says to never wet sand on bondo or primer as he swears it will retain some moisture and cause problems later on. He says he's had customers come back complaining about tiny little spots in the paint 6 months later. The guy has been painting for 20 -odd years so I guess he knows something. Has anybody heard this before?
