badtoytrd
Senior Member
Well, I started to prep to paint the underside tonight and knew that I have a bit of corrosion under the rear door on my 2011 Fleet so I decided to remove the trim and have a look. AHHHHHH, worse than I thought. It appears that when FWC installed the siding they used staples (steel?) to hold the siding until the trim pieces could be installed. To make things even better they used foam tape to "waterproof" the trim and staples. These two things compounded to corrode the aluminum siding. My question is....does anyone have a good way to stop and treat aluminum corrosion? I believe I can treat this and repair before it really spreads but I am hoping someone has used a product that works and can assist. I am also posting as a warning to those of you who have not looked under your trim.