In the earlier years, motor cars were prone to rusting and were often seen with patches of the lower regions of body panels eaten through by rust. European makes, notably Alfa Romeo, seemed specially vulnerable, though Japanese brands were not spared either.
Then circa the mid 1970s, a chemical treatment called “Tuff Kote” splashed onto the automotive scene. It was touted as the wonder coating that could prevent one’s gleaming trophy on wheels from morphing into an unsightly chunk of brownish iron oxide.
I remember salesmen of both new and pre-loved cars, quite persistently coaxed their customers to send in their mounts for this “extra protection” (of course they earned a commission).
Later on, as full-immersion cathodic protection technology became mainstream for auto manufacturers, Tuff Kote appeared to have a tough time selling their proposition.
The Rust Was History,…..,maybe.