11-10-2021, 02:55 PM
My understanding of the blistering is something called galvanic corrosion. Just google "galvanic corrosion under paint" and you can read all about why it happens. To fix paint gets stripped off, area gets prepped and painted over.
Brad Aden
1997 Newell #458 - sold
2003 Newell #653 - sold
2007 Prevost Legendary XLII #20
Towing 2020 Grand Cherokee Summit
St. Louis, MO