Gentlemen,
You have gotten me interested in cosmetic improvements on my Atlas Mill.
The original color appears to be similar to "Olive Drab". A previous owner
applied a brushed coat of "Light Green". This was a popular industrial color in the 1960's.
This is a suggestion to aid others in removing paint. Use a gel stripper such as “Strippeze”.
Apply it thick in a small area, ex: 1/8 or more thick, 6 inch square area. Glop it on quickly and cover with a piece of "Saran Wrap". Repeat over the total area of the machine as required overlap is necessary. The solvents do not affect the Saran Wrap, and the covering holds the chemistry in to work on the paint. Fumes in the air are reduced as well. Leave it on for 2 hours or more. When the Saran Wrap is peeled off most of the paint comes off with it as well. Wire brush off any remaining paint immediately. Wipe down with a solvent such as Lacquer thinner and the item is ready for painting.
I like the suggestion of etching primer!
Uncle Buck, If you are having aluminum castings made for the Motor & Jack Shaft two step pulleys and a belt guard (motor to Jack Shaft) I am interested.