On Tuesday, December 19, 2017 at 7:26:28 PM UTC-8, wrote:
On Sunday, December 3, 2017 at 10:34:04 PM UTC-5, wrote:
My club just bought Schweitzer 1-23
Needs repaint
Best chemical to strip aluminum?

YOU AREN'T STRIPPING THE ALUMINUM!

What paint is on it? Polyurethane is really tough to strip. If it isn't Poly then one of the bio-strips ( all basically bio-diesel ... a alkyl-ester, usually methyl ester, of fatty acids) will work pretty well if you are patient, and are very low toxicity.

The usually recipe is coat it up, put newspaper over it, and wait.

You can try various test samples.

If you are stripping polyurethane ... that's a lot harder and you'll need really noxious (and toxic) strip.

The bottom line is, if you want to strip anything, you will be using a methylene chloride stripper:

https://www.epa.gov/sites/production...y_morose_0.pdf

This will require proper safety equipment (respirator, etc.):
http://www.paintpro.net/Articles/PP3..._strippers.cfm

Tom