Are we talking about Vapour Phase soldering or Cleaning?
http://www.3m.com/market/industrial/fluids/library/prodinfo/7100/7100.html
HFE has been used for defluxing.
I am unaware of its use in soldering.
Try this link.
http://www.ausimont.it/docs/gald_vapor.html

 Guy Ramsey
American Competitiveness Institute
Senior Lab Technician / Instructor
610 362-1200 ext 107


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Brian Ellis
Sent: Wednesday, December 20, 2000 11:42 AM
To: [log in to unmask]
Subject: Re: [TN] Freon replacement for vapour phase


David

3M do manufacture a secondary perfluorocarbon fluid, but this is very
expensive and horrendously global warming (thousands of times worse than
CO2), as is, of course, their Fluorinert series, also PFCs. PFCs are
targeted in the Kyoto Protocol. Since then, 3M have marketed an HFE
"substitute" for CFC-113, but I don't know whether it is stable enough
as a secondary fluid - I rather doubt it. It may be slightly cheaper
than the PFC and it has a Global Warming Potential 'only' in the
hundreds.

Brian

David Whalley wrote:
>
> We have finally run out of freon for our Surf Systems vapour phase
> soldering machine. The machine is only used for student labs and the
> occaisonal tricky soldering job, so I havn't felt too guilty about our
> using up what we had (I think we must have averaged less than a
> litre/year), but we now need to find a suitable alternative. Can anyone
> comment on their experience with alternative secondary vapour materials in
> this type of small batch machine?
>
> Thanks,
>
> David Whalley
> Senior Lecturer
> Wolfson School of Mechanical and Manufacturing Engineering
> Loughborough University
> Loughborough
> Leics LE11 3TU
> UK
>
> Tel. +44(0)1509 227661
> Fax. +44(0)1509 227648
>
> [log in to unmask]
> http://www.lboro.ac.uk/icg
>
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