Join Date: Jun 2006
My Motorhome: 2013 Hymer 680 MB
Thanked 158 Times in 123 Posts
Never ever use expanding foam in such a small thin area, it will look like John Merricks head within 5 seconds, and delaminate a whole area of your sidewall. It is an extremely strong material. Injection of a suitable glue yes , but foam no.
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Academia and government artificially select for particular traits, among which is a lack of life experience. This is why it's possible for a person to be exceptionally bright while failing to grasp something as rudimentary as supply and demand.
Intellectuals: All engine, no map.