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> I believe a hot tank was traditionally filled with a hot mix of a very strong > alkali solution. This would attack organic materials, like grease, oil, and > paint, but not steel. Unfortunately it DOES attack the "white metals" > (aluminum, magnesium, zinc, cadmium) so real hot tanks have fallen from > favor since the days when all "real" engine parts were made of cast iron. > That's funny! We used to have a cast iron hot tank at art school for cleaning off really stubborn silkscreens that were crapped out with ancient dried ink. Same thing - some alkali-based stuff that I don't think anyone ever changed for twenty years... We just called it the toxic death deepfryer. - -- Mike Wodkowski 72 FI SQBK Brooklyn wodkowski@mac.com ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/