Hello to all!
This is my first opportunity to add my two cents to the planetFigure forum. I have been following some of the techniques used to clean metal figures. I am very happy to share a technique that I use to clean metal figures. A technique I have developed for myself and have used it for quite sometime with very positive results. After removing seam lines with #11 and #16 X-acto blades, I use a pre-mixed slurry of liquid hand soap and ground pumice to scrub away any surface oxidation and tool marks along with an old military issue APB brush. After scrubbing, I rinse the figure or individual parts off and use a fine nylon brush in a Dremel to lightly buff the surface. This technique works great and doesn't destroy detail. Also, it is non-toxic if you have little ones around.
Ground pumice stone is a very fine abrasive used in furniture finishing to achieve a smooth surface on shellac and varnish. The liquid hand soap acts as a lubricant for the pumice and is very easily rinsed off the figure after scubbing. I obtain my pumice from a woodworking store, but I think you may find it at the big home center stores or your local hardware store. I pre-mix a thick slurry in a spare paint jar.
Goodluck with this technique!
Dave Neary (warriorpoet)