Electronics Forum: ipa (Page 5 of 24)

Cleaning PCB After Soldering - How?

Electronics Forum | Wed Feb 22 03:29:09 EST 2017 | niki

Which is the best way to clean the PCB after > soldering? Is it good enough with IPA > (isopropyl) or with the Flux Remover > spray? However, we use a lead free solder wire > (3,5% flux inside the core) and after the > soldering its a visible we

White residue after cleaning with IPA

Electronics Forum | Sun Jan 26 09:32:55 EST 2003 | davef

But soon after cleaning and drying with IPA, we find a white residue formation. A: IPA will not nothing to clean your board. The white residue is exactly what you should expect. Search the fine SMTnet Archives for background. >How do we avoid th

Coating adhesion problems

Electronics Forum | Tue Sep 21 11:39:41 EDT 2004 | pabloquintana

Conformal coat a bare board to determine if there > is there is enough surface free energy from your > solder mask to prevent dewetting. Sorry for my ignorance, but what is "enough surface free energy"? How do I determine that? >* Bake a board

Re: Gold Fingers Discoloration

Electronics Forum | Wed Jul 05 20:54:17 EDT 2000 | Dave F

Hi Patrick: Mike is correct. Taking it a little differently ... The approach you take is dependent on: 1 Type of gold finish 2 Source of the staining. Since you�re talking gold fingers, this is probably hard gold. So, � * If it�s a water or an o

Re: cleaning glue off of stencils

Electronics Forum | Fri Mar 03 16:11:07 EST 2000 | cpitarys

Yes it is Ok and some folks ae doing it now, but unfortunatly IPA may not be the best solvent for this application. Take a small vial of the ipa and put some of your smt adhesive into it, shake it up and watch what happens, now step this up onto a l

cleaning solution to clean socket board.

Electronics Forum | Mon Oct 16 00:45:33 EDT 2000 | soza

Dear sir, I have a problem to find the new chemical solution instead IPA(isopropyl alcohol) to eliminate contamination on the test pin socket board made from copper that plate with nickle and gold. And after the often testing IC process, the co

Re: cleaning glue off of stencils

Electronics Forum | Fri Mar 03 16:11:07 EST 2000 | cpitarys

Yes it is Ok and some folks ae doing it now, but unfortunatly IPA may not be the best solvent for this application. Take a small vial of the ipa and put some of your smt adhesive into it, shake it up and watch what happens, now step this up onto a l

Aqueous Cleaning PCB's with Potentiometers

Electronics Forum | Tue Apr 29 13:43:34 EDT 2008 | arminski

THANKS FOR YOUR REPLY GUYS... more background... solder paste is Water Soluble. We mask the potentiometers prior to aqeous washing using solder mask, then our operator brush the solder joints with IPA after the Wash Process...I'm concerned about th

Missprint PCB cleaning

Electronics Forum | Mon Aug 11 05:26:55 EDT 2008 | gersla

Hi All We are looking for not expensive solution for misprint PCB cleaning for both one and double side assemblies. We have tried different ways and cleaning solutions like: IPA, Vigon Zestron SD300, Vigon SC200 by deep the boards in to stainless ste

Miss Prints

Electronics Forum | Fri Sep 05 13:21:26 EDT 2008 | gregoryyork

We manufacture a low cost machine completely Air driven for Misprints only but dont have an agent in the USA unfortunately or could have demo'd it for you They do work very well with IPA derivative cleaners but IPA on its own is very poor. Best metho


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