ALODINE

A non-anodic protective coating. Alodine {aka Iridite, aka Chromate Conversion} is a microscopic thin film commonly prescribed on aluminum to provide an excellent surface prep for paint, aid in corrosion resistance and to impose desired electrical resistance characteristics, (commonly prescribed for radio and amplifier cabinets.) The the process re...
Found on http://www.eaa.org/experimenter/glossary.asp
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