Jean-Francois

No clean flux means cleaning is not necessary under most conditions. No
clean does not mean no residue. A more accurate representation for 'no
clean' might be 'low residue' flux. Several have been tested and approved
for mil spec work, a document was published of work done at China Lake. Yes,
the no clean residues can inhibit adhesion of coating materials, a
particular selected no clean flux may not be compatible with the selected
conformal coating material. Most of the CC and flux manufacturers are
prepared to answer these questions regarding their materials and its
compatibility with the popular brands of fluxes. And yet, its hard to beat
1st hand testing in your facility with your application methods, and on, and
on. I suggest the next stop is quiz the tech rep of your flux and CC
supplier, then on to confirm the tech rep claims with some simple tests at
your facility.



Carl Barnes

-----Original Message-----
From: Bissonnette, Jean-Francois [mailto:[log in to unmask]]
Sent: Thursday, November 09, 2000 12:34 PM
To: [log in to unmask]
Subject: [TN] Conformal coating and no clean flux.


Did anyone have any kind of problem with coating adhesion when using
"no clean" flux (manual repair and reworks)?  I've been told that by some
tech here and I have no time to experiment with it.

And is "no clean" flux really "NO CLEAN" anyway???

JF


WABTEC CORPORATION CONFIDENTIALITY NOTE
The content contained in this e-mail transmission is legally privileged and
confidential information intended only for the use of the individual or
entity named herein. If the reader of this transmission is not the intended
recipient, you are hereby notified that any dissemination, distribution, or
copying of this transmission is strictly prohibited.

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------