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Old 07-06-2009, 03:48 AM
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tdoty tdoty is offline
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Quote:
Originally Posted by Coppretta View Post
Maybe aluminum is much wimpier than copper?
Aluminum is indeed much wimpier than copper! For etching, I have to reduce ferric chloride 1:1 with water for aluminum; the full strength stuff foams up , turns the aluminum green and dissolves everything. Full strength ferric chloride still takes some time on copper.

Tim D.
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