I work with sheet metal all day, along with composites and other materials. I use lacquer thinner to clean of the mfg. data from the sheet metal before sending it off to the paint dept. There its washed in an acid bath before it gets chem. treated, primed and painted. I used mek in the military, then, in the 80's they removed from its inventory because of its ill effects on the body. Personally, I would avoid it at all costs and use it only as a last resort. Its an "oil displacement agent," then evaporates. When it gets in your skin that's what it does to the natural oils in there. After a while the skin will crack and have a long rough time healing. So please always use rubber gloves. I've seen this with some of the veteran sheet metal workers.Tom in Tenn.
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