I think this proves Dewey's comedic solvency.David
> Date: Thu, 24 Aug 2006 13:57:30 -0700> From: [log in to unmask]> Subject: Re: [TN] FW: [TN] water as a solvent> To: [log in to unmask]> > You and Eric have really been paying attention in class.> Dewey> > -----Original Message-----> From: TechNet [mailto:[log in to unmask]] On Behalf Of Ahne Oosterhof> Sent: Thursday, August 24, 2006 1:54 PM> To: [log in to unmask]> Subject: Re: [TN] FW: [TN] water as a solvent> > And I thought you meant "they are all wet".> > Ahne.> > -----Original Message-----> From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey> (EHCOE)> Sent: Thursday, 24 August, 2006 12:35> To: [log in to unmask]> Subject: [TN] FW: [TN] water as a solvent> > After sending this, Mr."it depends" sent me a message questioning my> lucidity. I said I never worked in that company, but to keep my comedy> enterprise solvent, I will explain.> The people must be bi-polar and if the water was it would be a great> cleaning medium( as opposed to the clairvoyant midget that escaped from> prison; small medium at large ), because I should of seen this coming,> just> like when I had created the perfect solvent, but couldn't find anything> to> keep it in.> Dewey> > -----Original Message-----> From: Whittaker, Dewey (EHCOE)> Sent: Thursday, August 24, 2006 11:31 AM> To: 'TechNet E-Mail Forum'; 'Barmuta, Mike'> Subject: RE: [TN] water as a solvent> > People who think that are what water should be to be effective.> Dewey> > -----Original Message-----> From: TechNet [mailto:[log in to unmask]] On Behalf Of Barmuta, Mike> Sent: Thursday, August 24, 2006 10:42 AM> To: [log in to unmask]> Subject: Re: [TN] water as a solvent> > Hi Ed: I agree with you. Who in the heck said water is the best solvent> for> cleaning PCB's?> > It's recognized as a "universal" solvent because it has the ability to> solvate so many elements, compounds and mixtures. It is a great> decontamination agent on polar/hydrophilic materials.> > However it is a terrible solvent when trying to remove> non-polar/hydrophobic> residues. Obviously it requires a saponifier if you want to remove these> types of soils. Perhaps this is what they meant.> > > > > Regards> > Michael Barmuta> > Staff Engineer> > Fluke Corp.> > Everett WA> > 425-446-6076> > > > -----Original Message-----> From: TechNet [mailto:[log in to unmask]] On Behalf Of Edward Mines> Sent: Thursday, August 24, 2006 9:31 AM> To: [log in to unmask]> Subject: [TN] water as a solvent> > I have to disagree with the assertion that water is the best solvent for> cleaning PC boards.> > It may be good for many (or even most no clean fluxes) but water alone> will not touch various greases and oils including finger prints. Have> you> ever tried to clean you hands> with water alone after changing the oil in your car?> > I don't know the legal consequences of using traditional vapor> cleaning> equipment or the current availability of effective vapor cleaning> solvents,> but I do know that vapor cleaning with trichlor was very effective when> it> was the industry standard. Other solvents will work too.> > It is important to remove all oily residues (finger prints, mold> release> agents etc) from PC boards prior to conformal coating - otherwise> incomplete> coverage can take place.> Both MIL-I-46058 & IPC-CC-830 state that conformal coatings should be> free> from voids, skips and other breaks in the coating.> > Ed Mines> > > ---------------------------------> > ---------------------------------------------------> Technet Mail List provided as a service by IPC using LISTSERV 1.8e To> unsubscribe, send a message to [log in to unmask] with following text in> the> BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or> (re-start) delivery of Technet send e-mail to> [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing> per> day of all the posts: send e-mail to> [log in to unmask]: SET Technet Digest> Search the archives of previous posts at:> http://listserv.ipc.org/archives> Please visit IPC web site> http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional> information,> or contact Keach Sasamori at [log in to unmask] or 847-615-7100> ext.2815> -----------------------------------------------------> Stay in the know. Pulse on the new Yahoo.com. Check it out.> > > This message (including any attachments) contains confidential and/or> proprietary information intended only for the addressee.> Any unauthorized disclosure, copying, distribution or reliance on the> contents of this information is strictly prohibited and may constitute a> violation of law. If you are not the intended recipient, please notify> the> sender immediately by responding to this e-mail, and delete the message> from> your system. 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