THF brings a tear to my eye. I used it all the time and it never bothered me- it never bothered me- never bothered me - bothered me.
I was doing hydrogenation and polymerizations runs and the building next to our lab made THF. It blew up one day and a half a block of Mogador doesn't exist anymore.
Still great stuff, but I agree with Doug. There are much safer and easier ways to do this.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
Sent: Wednesday, March 06, 2013 7:05 AM
To: [log in to unmask]
Subject: Re: [TN] Coating stripping facility
While I agree with Patrick that this stuff works, it is Tetrahydrofuran, a nasty material and very aggressive. And if you have the possibility of operators mixing soldering irons with THF, you get some frightening breakdown products. We used to use these, but got away from it completely.
Straight toluene or xylene will strip 1B31 pretty effectively and is much less costly or hazardous than THF, especially if you are doing a few hundred assemblies. And you have some good recommendations for companies that will do this for you.
Doug Pauls
From: "Goodyear, Patrick" <[log in to unmask]>
To: <[log in to unmask]>
Date: 03/06/2013 07:00 AM
Subject: Re: [TN] Coating stripping facility
Sent by: TechNet <[log in to unmask]>
Ioan,
When we need to remove conformal coatings for repairs we use Conformal Coating Remover from Trace Technologies, we get it from TechSpray in Amarillo Texas 806-3728523 www.techspray.com
MSDS (Material Safety Data Sheets) can be found online. Very effective
for removing HumiSeal and others.
We have it in 1Qt. Bulk and in 12.5ml pens, great for spot application.
Pat
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ioan Tempea
Sent: Tuesday, March 05, 2013 12:19 PM
To: [log in to unmask]
Subject: [TN] Coating stripping facility
Dear Technos,
I'm looking for a facility able to strip 1B31 from a few hundreds of boards preferably in Eastern Canada or US New England. On or offline answers appreciated, no sub contractor is a priori disqualified, even if in CA.
Thanks,
Ioan Tempea, ing.
Ingénieur principal de fabrication / Senior Manufacturing Engineer [signature002]<http://www.digico.cc/>
950 RUE BERGAR, LAVAL, QC, H7L 5A1<http://g.co/maps/2gh3f>
T+ 1 (450) 967-7100, EXT244
------------------------------------------------------------------------
[signature001] <http://www.facebook.com/pages/Digico/277076778479>
------------------------------------------------------------------------
Lauréat Dunamis 2012<http://digico.cc/dunamis-2012/>
Entreprise manufacturière / Gestion du capital humain
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