Removing F$*!ing paint from hacksaw blades

[infrasonic]

Acetone, paint stripper, or use a heat gun to heat it on medium-max heat then wipe with a clean cloth..
I just use low grit sandpaper for the hacksaw blades that I have as the paint are quite thin.

[foxyfox]

I was pretty obsessed with getting a similar task done, and basically, here's how the categories I've thought or tried:

• Solvent approach:
  
  • most effective: aircraft stripper, aka methylene chloride, aka dichloromethane. Warning: it is, insanely hardcore. INSANELY hardcore.
  • safer: a strong ketone. Such as methyl ethyl ketone, or acetone.
• Acid/base approach: I didn't bother trying these out, since the paint finish could be polymer based.
• Physical abrasion approach:
  
  • elbow grease intensive: sandpaper, wire brush, etc.
  • more fun: high pressure abrasive blasting (medium: sand, dry ice, etc)
• Fire: need to be careful not to heat up to curie point. Also requires extra step of removing carbon build-up, with let's say, a strong base bath (such as lye)

I would personally go with an acetone soak inside a polyethene bag, followed with a brass or aluminum brush to scrape off the sludge.

[cheerIO]

You could try using it as a hacksaw blade. This method seems to take all the paint of the ones I have around here.