I found a patch on my airplane that does not seem to want to hold paint. It is located near the right elevator torque tube but on the top of the canard. It looks as though the previous owner/builder sprayed some WD-40 toward the elevator tube and hit the top of the canard as well.
The area is about 3" x 1/2". I've sanded back all the primer and topcoat in that area to where it appears to be attached. The exposed area is EZPoxy micro for the most part.
What will get rid of the silicone or what ever it is and be sure the paint will adhere?
