I like many attempted to remove the wall vinyl with compounds, a heat gun, and brut strength with not too much success. I decided to paint over it and used a paint stripper called JASCO ( use the kind that says sprayble on the front, when applied it melted the paint and primer off the vinyl wall covering like butter. After I wiped the paint off I noticed a piece of the vinyl had bubbled up. I applied a second coat and waited for about ten minutes and the vinyl started to bubble up from the aluminum skin inside. It is not easy or fun work but 10 hours in and my 1967
26’ Overlander is almost an all aluminum interior. The aluminum underneath looks great and is in perfect condition.