How concerned should I be about this corrosion?

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Explorer II
Posts: 8,244
Registered: ‎Jun-18-2015

Re: How concerned should I be about this corrosion?

What year of the camper?
Lot of those aluminium sidings have been glued with corrosive glue.
Meaning the corrosion starts under.
Scrape the bubbles, prime the metal, caulk the holes and pray.