Electronics Forum: no-clean or water soluble (Page 1 of 24)

no-clean vs. water soluble

Electronics Forum | Wed Sep 13 12:36:14 EDT 2000 | Steve Thomas

In the following thread, http://www.smtnet.com/electronicsforum/view_message.cfm?message=9584& John Thorup touched on some applications where no-clean fluxes could be a bad idea. I'm looking for some more detailed info. (papers, references, texts

Re: no-clean vs. water soluble

Electronics Forum | Wed Sep 13 20:37:56 EDT 2000 | Dave F

Awww Stevo, just chill. I think of NC as the process engineers' full employment material. Water solubles are for wimps!!! Har har har

Re: no-clean vs. water soluble

Electronics Forum | Thu Sep 14 11:39:59 EDT 2000 | Steve Thomas

Ahhhh, Dave, I'm glad I can still count on you for some real cutting edge info. yuck, yuck. Believe me, there's a lot more information available on how to resolve no-clean issues than there is on how to keep this stupid board wash/DI/Stencil wash/

Re: no-clean vs. water soluble

Electronics Forum | Fri Sep 22 16:45:32 EDT 2000 | Casimir Budzinski

It realy depends on what no-clean you use, I had on that would get under IC's and not get fully activated it was fine here in the states but when it was shipped over seas the salt air and humidity gave us fits, another we used didnt have that problem

Re: no-clean vs. water soluble

Electronics Forum | Thu Sep 14 19:44:25 EDT 2000 | Brian W.

I cannot give references to papers, etc, but I can tell you from experience that High Impedance circuits and High Power RF circuits are not something to try no-clean on. For an aerospace customer, I had a circuit that any residue left between two pa

Re: no-clean vs. water soluble

Electronics Forum | Fri Sep 15 09:24:54 EDT 2000 | C.K.

At my last place of employment, that was the big reason why nobody (especially the Design Engineers) bought into a no-clean process - interference with high-impedance circuits. One guy was so paranoid about flux residues remaining on the board, that

Encapsulating water soluble flux residue?

Electronics Forum | Fri Dec 16 11:21:18 EST 2005 | patrickbruneel

Steve, Water-soluble fluxes are per definition very corrosive and need to be cleaned (read the data sheet) Encapsulation will prevent humidity reaching the water-soluble acids but will not prevent reducing the metals the flux is in contact with to m

Mixing No-clean and water soluble processes

Electronics Forum | Tue Feb 23 13:49:20 EST 2010 | davef

There should be no problem. Recognize that the residue of some low residue fluxes turn a milky-white color when you wash them. This could freak your quality people.

Mixing No-clean and water soluble processes

Electronics Forum | Wed Feb 24 08:21:54 EST 2010 | vleasher

Thanks for the input! We are doing a few protos this week and we will see how they go!

Mixing No-clean and water soluble processes

Electronics Forum | Wed Feb 24 11:28:09 EST 2010 | vleasher

I apologize for being so vague. It is a standard leaded process using ALPHA OM-5100 for the SMT. So would a reduction in wash temp result in less white residue?

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