Etch cleaning | Article about etch cleaning by The Free Dictionary
etch cleaning[′ech ‚klēn·iŋ]
Removing soil by electrolytic or chemical action; removes some of the surface metal along with the dirt.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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This includes etch cleaning
that can be used by dip or spray and which do not, even on alloys, require a desmutting stage.