Re: gas tank question

Posted by HH56 On 2022/10/1 14:54:39

Bare iron based sheetmetal would be quick to rust. I don't know what they might have used in the 20s -- maybe just regular zinc galvanizing -- but I believe sometime in the early 30s they started plating the tanks with a much more corrosion resistant Terne coating.

If either coating was sandblasted I would imagine that process would at least damage and maybe destroy whatever might be remaining of the original coating.

If replating is not an option then at the least I would go back with an air drying high quality modern ethanol resistant gas tank sealant or maybe a baked on epoxy.