If you are washing off ALL the WS flux, then touching up with rosin flux
should be OK.  The bad thing would be to try to mix the two fluxes and
then clean... BAAAAAD!!!!!

Phil

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Kevin
Sent: Monday, October 03, 2005 12:35 PM
To: [log in to unmask]
Subject: [TN] Mixing Fluxes: Water Sol and Rosin

Is it acceptable to mix flux types on a single piece of hardware?  I
have
background in MIL/AERO requirements of the "rosin only" creedo.  My past
experience is with rosin types only, to avoid all the emotional customer
issues and testing requirements.  However, I am now working for a
company
and their SOPs dictate use of WS at first solder, followed by water
clean.  They then dictate rosin for any touchup, with hand clean only.
Is
there a risk in mixing water sol and rosin on a single piece of
hardware?
What about resin and rosin?

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