Originally Posted by
OurWorkbench
Yes, I can see the picture, now.
I don't think the 301 has a shellac finish. I'm thinking that maybe a carnauba wax may help protect from further deterioration.
It would not be rust as the 301 body is cast aluminum. There is something called aluminum rot, but I haven't seen any that looks like that.
Janey - Neat people never make the exciting discoveries I do.
Oh, snap. Thanks, Janey. I'd forgotten that the 301 was aluminum. Exposure to heat, like a light bulb laid on the surface can cause that type of bubbling but I don't know.
I do use carnuba wax on my vintage machines especially on the bed to protect them. Which reminds me, its about time to do the machines again.