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October 1997

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Subject:
From:
Christopher Rhodes <[log in to unmask]>
Reply To:
TechNet Mail Forum.
Date:
Fri, 17 Oct 1997 12:12:14 -0500
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Denny

I am not aware of any possible ban on cupric chloride etching, but perhaps someone else has other information.

Christopher Rhodes
Director of Public Policy
IPC
[log in to unmask]
847/509-9700 x306
fax 509-9798

>>> <[log in to unmask]> 10/17/97 12:02PM >>>
Have heard twice in the last week about a future ban on "cupric chloride
etching".  My response was that there must be some new regulation on handling
of chlorine cylinders for cupric regeneration.   Of course, there are a
couple of other regeneration techniques besides chlorine gas, so that would
not eliminate cupric etching.

Has the IPC Environmental, Health, and Safety group heard about any of this,
or is this the "chain letter" of the PWB fabrication industry in mid-October?

Denny Fritz
MacDermid, Inc.
Waterbury CT

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