Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpda!hpcupt1!jonb
From: jonb@hpcupt1.HP.COM (Jon Bayh)
Newsgroups: sci.electronics
Subject: Re: nasty fluorocarbons
Message-ID: <7110013@hpcupt1.HP.COM>
Date: 18 Feb 89 21:03:09 GMT
References: <24497@amdcad.AMD.COM>
Organization: Hewlett Packard, Cupertino
Lines: 19

> We buy these spray cans of TCE for defluxing circuit boards. I
> know that fluorocarbons are bad for the ozone layer and in this
> case, we're not just talking about the propellant, but the contents
> delivered by the propellant are fluorocarbons (I believe).
> 
> What alternative do we have? We really need to be able to clean
> the circuit boards after reworking them so we can visually inspect
> them and also to remove any small pieces of solder.
>
> Phil Ngai, phil@diablo.amd.com		{uunet,decwrl,ucbvax}!amdcad!phil

Denatured alcohol seems to work well for individual jobs.  Just brush it on
with a paint brush and let it drain off.  I don't know how well it would
work in a production application.  I also don't know whether it would harm
(or alter the specs of) components.  I've used it a few times and had no
problems.

			Jon Bayh
			hplabs!hpda!jonb