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|    sci.electronics.basics    |    Elementary questions about electronics    |    72,318 messages    |
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|    Message 70,460 of 72,318    |
|    George Herold to Ralph Mowery    |
|    Re: Solder paste    |
|    08 Feb 18 09:24:40    |
      From: gherold@teachspin.com              On Thursday, February 8, 2018 at 10:10:37 AM UTC-5, Ralph Mowery wrote:       > In article <8e42efb2-389d-4edb-b939-fe05e5cc164b@googlegroups.com>,       > bruce2bowser@gmail.com says...       > > >       > > > > > AFAIK: all PCB fluxes have to be water soluble since ozone layer       > > > > > legislation banned the cleaning solvents - might be worth seeking out       > > > > > which one is strong enough.       > > > >       > > > > Umm, no. Leaded processes with rosin flux and solvent clean are       readily       > > > > available, at least over here. I use them exclusively.       > > >       > > > Hey you should walk on the wild side sometimes. Water based flux is fine       > > > for low impedance stuff. (~<1 Meg ohm). It's fast and cleans up nicely.       > > >       > > > What do you use to clean off rosin?       > >       > > Alcohol won't work?       > >       > >       >       > I use Alcohol to remove the flux. Usually 91 % is the most you can find       > locally, but I usually order some 99% to do the cleaning with.       >       > Most often for the SMD and PC work I try touse some of the no clean       > flux, but clean it with Alcohol anyway.              I use acetone and a cotton swab for small stuff. For a       big board 91% IPA and then rinse with detergent and hot water.       (but I don't really like that.)              George H.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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