Phil, I forgot to add when we do spot de fluxing we use a bundle of Q-tips or similar to absorb the washout in specific areas, so as not to spread it. Pace actually makes a tool, looks like a chalk holder that holds a sponge for dabbing up the residue after spot de-fluxing. pat On Fri, Apr 24, 2015 at 9:31 AM, Nutting, Phil wrote: > Ok, so if I am spot washing flux off a circuit board or cleaning the > face of an epoxy insulator to remove silicone dielectric grease what > am I supposed to use? > > Brian, I know you are very environmentally concerned. IPA and the > like have been used for years by our industry and it is usually the > default cleaner for everything. And yes I know alcohols do a better > job of spreading contaminates than removing them. What then, if spot > cleaning, should be used? (I know, "it depends".) Manufacturing is > always complaining that Engineering creates designs and processes that > take too much time, but they work if done as designed. Finding a > practical solution and changing the mindset is no small task. > > I look forward to your sage wisdom. > > Phil > > -----Original Message----- > From: Brian Ellis [mailto:[log in to unmask]] Sent: Friday, April 24, 2015 > 12:18 PM > To: TechNet E-Mail Forum; Nutting, Phil > Subject: Re: [TN] methanol for cleaning > > Yes! absolutely! And it is highly toxic, to boot, with ingress to the > body by all means, including cutaneous. IMHO, avoid it! > > Brian > > On 24/04/2015 18:12, Nutting, Phil wrote: >> We have had many posts regarding the ability of alcohol to evenly >> distribute flux and other contaminates over the surface of the board >> or part. Does methanol do that same thing? >> >> Phil Nutting | HVP Development Engineer | Excelitas Technologies >> Corp >> >> Lab: +1 978.224.4332 | Office: +1 978.224.4152 >> 35 Congress St, Salem, MA 01970 USA >> [log in to unmask]<mailto:[log in to unmask]> >> www.excelitas.com<http://www.excelitas.com/> >> >> >> [Excelitas R_emailsig] >> >> >> Please consider the environment before printing this e-mail. >> ________________________________ >> This email message and any attachments are confidential and >> proprietary to Excelitas Technologies Corp. If you are not the >> intended recipient of this message, please inform the sender by >> replying to this email or sending a message to the sender and destroy >> the message and any attachments. Thank you. >> >> >> >> ______________________________________________________________________ >> This email has been scanned by the Symantec Email Security.cloud >> service. >> For more information please contact helpdesk at x2960 or >> [log in to unmask] >> >> ______________________________________________________________________ >> > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud > service. > For more information please contact helpdesk at x2960 or > [log in to unmask] > ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________