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The concern would be that some masks have a very fine powder filler. This
might raise some concerns, for example it could accumulate in closed loop
systems.
Kind Regards
Mike Fenner
Applications Engineer, European Operations
Indium Corporation
T: + 44 1908 580 400
M: + 44 7810 526 317
F: + 44 1908 580 411
E: [log in to unmask]
W: www.indium.com
Leadfree: www.Pb-Free.com
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Frank L Norman
Sent: Friday, January 25, 2002 3:28 PM
To: [log in to unmask]
Subject: Re: [TN] Water soluble solder mask
Steve,
The batch washer is just like your dishwasher at home. It washes with a
saponifier for 9 minutes then preforms about 10 rinse cycles(resistivity
monitored), draining and filling with fresh DI water each time.
Frank Norman
Raytheon
[log in to unmask]
805-879-2745
SteveZeva@AOL
.COM To: [log in to unmask]
Sent by: cc:
TechNet Subject: Re: [TN] Water soluble
solder mask
<[log in to unmask]
ORG>
01/24/02
06:44 PM
Please
respond to
"TechNet
E-Mail
Forum.";
Please
respond to
SteveZeva
Hi Frank!
Question: Are you closed-loop with your water?
-Steve Gregory-
Hi all,
Looking for insight about using water soluble solder mask.
We are currently using a latex solder mask made by Litton. But now the
question as been asked if water soluble mask could be used instead. Note,
batch washer(Aqueous Tech. Washer) is used to clean PWAs.
Frank Norman
Raytheon
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