Howard,
We are using Kyzen Cybersolv(r) 141-R(tm) for our non-aqueous spot flux cleaning. It works very well.
Our best change was to switch to OA flux and a pure DI wash. Amazing results for circuit boards that are susceptible to low current leakage or high voltage applications to 180kV. We have been using this since 2006 when we converted to RoHS solder.
Phil Nutting
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Goodyear, Patrick
Sent: Thursday, September 12, 2013 6:07 PM
To: [log in to unmask]
Subject: Re: [TN] nPB alternative for cleaning
Howard,
We use alcohol either Ethyl (200 proof, preferred) or Ethyl/IPA (200 proof, denatured) doesn't clean as aggressively as pure 200 proof, IPA can also be used but it will craze some plastics. You have to pay state (CA at least), and federal taxes on the grain alcohol and a well ventilated room or else you shouldn't drive for a bit.
Pat Goodyear
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Watson, Howard A
Sent: Wednesday, September 11, 2013 10:27 AM
To: [log in to unmask]
Subject: [TN] nPB alternative for cleaning
Technetters,
In January, Brian Ellis raised some excellent points about the hazards of using nPB, or 1-Bromopropane. With the release of the OSHA/NIOSH Hazard Alert on nPB July 31, 2013, the pressure is on to stop using this stuff. We use the trade name Ensolv. While we slowly convert to aqueous batch cleaning, our need for spot cleaning on the bench will remain, as we are more like an R&D shop. We are using rosin core solder and RMA flux applied topically. The techs love Ensolv, and it does work great. Does anyone have a recommendation for a replacement of Ensolv? I have seen the specs of 3M Novec engineered fluid, maybe 71DA is a good choice?
Thanks in advance for your advice.
Howard A. Watson
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