David, Isopropyl Alchol usually has "additives" in it. Sometimes oils, sometimes perfume, etc. These are to be avoided at all cost! As they are not required to inform the purchaser of any additives, it's safer to either use Wood Alcohol or Grain Alcohol which do not have additives. Best Regards, Joe Garrett, RPT, (Oregon) Been There, Didn't Like It, So I'm Here To Stay! [G}
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