Well, this is a first. I won't say it's completely un-heard of because I
used to work for a company that shall remain nameless that used Cascade
dishwashing detergent in a dishwasher to clean assemblies...hey,
whatever works.
Let's take a look at Mr. Clean multipurpose cleaner. From the MSDS:
Chemical CAS No / Unique
ID Percent
Fragrance(s)/perfume(s) 000000-00-1
Surfactant(s) (unspecified) 000000-00-4
Water 007732-18-5
Isopropylamine dodecylbenzenesulfonate 026264-05-1
C9-11 Pareth-3 068439-46-3
0.1-1.0
Colorant/Pigment/Dye(s) 999999-49-3
Quality control agent(s) 999999-49-8
Three of the ingrediants are surfactants. The Isopropylamine
Dodecylbenzenesulfonate is sometimes known as a anionic surfactant, and
the C9-11 Pareth-3 is also sometimes known as a nonionic surfactant. I
don't know what the quality control agent is, and the colorant and
fragrance is pretty self explaining. So Mr. Clean is a fancy detergent.
Personally, I would think if you are rinsing really, really well with DI
water, I wouldn't see a problem using it. There ARE other things that
are DESIGNED specifically for cleaning printed circuit assemblies, so
why not use them?
-Steve Gregory-
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Jose Marroquin
Sent: Wednesday, July 05, 2006 12:37 PM
To: [log in to unmask]
Subject: Re: [TN] Rocha Laminate Voids..
All,
Recently we clean up residue on some boards with multipurpose Mr. Clean.
Should I expect problems from it?
Thanks.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Susan Mansilla
Sent: Wednesday, January 04, 2006 5:16 PM
To: [log in to unmask]
Subject: Re: [TN] Rocha Laminate Voids..
If they are in the prepreg and are present as pressed, then there is a
mismatch between the prepreg and pressing conditions. Are you able to
do a flow test on some sheets of prepreg alone to see if the % flow is
as expected?
Can
you determine if you are getting the predicted thickness of the prepreg
layer? Are you able to determine if you are hitting the correct temp
before you hit the higher pressure during the lamination cycle?
Is the excess around the edges of the panel "frothy" in appearance?
Just little thoughts that I would use to attack and "fix" the problem.
Susan
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