[volt-nuts] PCB cleaning and sealing
Alan Scrimgeour
scrimgap at blueyonder.co.uk
Sun Sep 26 11:54:56 UTC 2010
I find isopropyl alcohol doesn't remove all visible traces of flux. I also
wonder if it's water content might cause the the same problems as water
based pcb cleaners that I mentioned in my last post.
Ordinarily I use cotton buds and acetone.
Alan
----- Original Message -----
From: "Dr. Frank Stellmach" <drfrank.stellmach at freenet.de>
To: <volt-nuts at febo.com>
Sent: Sunday, September 26, 2010 8:20 AM
Subject: [volt-nuts] PCB cleaning and sealing
> Andreas,
>
> I simply use products from Kontakt Chemie.
> http://www.crcind.com/csp/web/home.csp
>
> Kontakt LR = Kontakt PCC for chemical and mechanical cleaning (flux
> residuals, water, dirt), afterwards Plastik 70 for sealing to avoid
> corrosion, oxydation, leakage currents.
>
> Good ventilation during application is important for all solvents, which
> have a good cleaning effect.
> They all are poisonous and evaporate easily.
>
> To my experience, propyl alcohol is not strong enough, and acetone may
> harm PCB and components.
> The additional mechanical cleaning by a brusch helps a lot.
>
> Frank
>
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