I removed the alodine (shinny) coating on both the Left and Right Wing Bottom Skins with a high speed 6" orbital air sander with 220 grit sand paper. I then filled any imprefections or dents with Metal (aluminum) Body filler. After allowing to dry completly I sanded and repeated the process several times until satified that the Bottom Skins would pass. I then wipped clean both Wing Bottom Skins with a towel soaked in Acetone and then rinsed with water both cleaned wings with pressure from a house hose and wiped clean with a dry towel and allowed to dry by thernal radiation/induction process( by the sun power)..
Both Wing Skins Bottom are now fully clean
Still Grinding and Smoothing the Right Wing Bottom Skin