Before I get rolling, I want to clear up one thing: Bondo is a brand name, though it's commonly used as a general description referring to any and/or all body fillers-kinda like Kleenex is to tissues.

Well, I am trying to fill up some vent holes on my side panels so I used 2 applications of Bondo with the second completely covering everthing. When I went to sand off the extra I started wetsanding ...