Hi Alan,

Trans 1,2 Dichloroethlyene from PPG should do the trick.
It ain't cheap but it does a fantastic job on the assemblies.
Just be sure to follow the safety guidelines.

Hans

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hans M. Hinners
Process Engineer
Toppan Electronics, Inc.
770 Miramar Road
San Diego, CA 92126
(858) 695 - 2222 ext. 241
(858) 695 - 6823 fax
[log in to unmask]


-----Original Message-----
From: Alan Kreplick [mailto:[log in to unmask]]
Sent: Monday, July 16, 2001 1:41 PM
To: [log in to unmask]
Subject: [TN] Cleaning No-Clean


Hello Technet,

Looking for recommendations on how to remove the white residue left from a
no-clean (Alpha 205R) rework process (mini-wave rework station) on a bunch
of boards, both in-house and out in the field.

The boards - single-sided pth - were wave soldered using Cobar no-clean
flux.  The boards have several aqueous incompatible components on them, so
cleaning the already built boards in an in-line or batch di-water system
with or without a saponifier is not an option (maybe a consideration for
new boards if the aqueous compatible parts are put on after wave).

Thanks in advance for the responses,

Al Kreplick
Sr. Mfg. Eng.
Teraydne, Inc.
500 Riverpark Drive
North Reading, MA 01864
Tel: 978-370-1726
Fax: 734-661-5352

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