Remove the old coating completely and grind back with abrasive, then use Deox-Gel repeatedly until steel is clean. After this, apply Electrox, and top with Epoxy Mastic. Dynax-UB can be added too to further boost corrosion protection. It is also important to access rear of panel and treat with Dynax-S50.
The old sealer on my wheel arches has come off and they now have surface rust in this area, how should I treat this?
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