Vinegar or Molasses to make cast iron look foundry fresh?

Rat Bastid said

Look around and see if you can find a shop in your area with a laser cleaner.

Laser cleaning is making all other forms of cleaning and rust removal obsolete.

And it doesn’t affect the surface like glass beading and shot blasting does.

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double 0 glass beads do not etch metal if they are new clean beads. They actually polish the metal. The guys that leave the beads in for many jobs dull the metal. I clean plastic , brass, aluminum, and copper. The most important is cleaning the beads out of the crevices when you are finished. . Never glass bead items that have not been degreased and dried. I use Glass beads for parts . and crush glass for auto body. Sand and zinc oxide is for iron workers, Beam and bridge cleaners.