Electronics Forum: 2331-zx (Page 1 of 3)

Kester 2331-zx flux streaking solder mask

Electronics Forum | Thu Nov 04 10:29:10 EDT 2010 | 18424

Hello all, Has anyone used Kester 2331-ZX water soluble flux on selective soldering and expirienced a white film after soldering. I have seen this on and off for a few weeks now and believe it is a chemical reaction with the solder mask or improperly

Kester 2331-zx flux streaking solder mask

Electronics Forum | Thu Nov 11 13:00:20 EST 2010 | 18424

Thanks Dennis, The fact that someone other than myself has experienced this is good to hear. Solder mask type should be spec'd all the same through out the many board suppliers we use but its worth the check.I have checked with kester but am still aw

Kester 2331-zx flux streaking solder mask

Electronics Forum | Tue Nov 09 20:52:34 EST 2010 | ppcbs

Yes, we have had this happen with certain solder masks over the years. Hot air gun is the best solution we can find if the oven doesn't do it. Back in the day when we had a vapor degreasor, freon based solvents would also remove the clouding. Let

White powdery residue following Wave

Electronics Forum | Fri Mar 02 15:52:19 EST 2001 | jagman

This happens to be after the water wash process. These are Burn-In boards so an SMT epoxy is used prior to wave. The flux used is Kester 2331ZX. Would using a thinner cause this to occur? The residue is all over the board. Thanks.

Kiss selective solder flux

Electronics Forum | Fri Mar 22 14:19:38 EDT 2019 | gregcr

Thank you ProcEng1 Nordson sent me a flux suggestion list: No Clean: 1. Kester Select 10 2. ALPHA EF-2210 3. AIM FX-16 Water Sol: KESTER 2331-ZX Nozzle Tinning: SUPERIOR #75

Versaflow dross buildup

Electronics Forum | Fri Jan 25 11:49:09 EST 2008 | toddl

Hi all, I have an inconsistent situation. Lately, we seem to have excessive dross buildup in the solder pot which inturn causes the pot to overflow. Has anyone had a similar experience? Here are the details: age of machine= 9 years, flux used= Kester

Solderability Issues

Electronics Forum | Mon Aug 09 12:46:59 EDT 2010 | ppcbs

Try tinning pads with a high pH water soluble flux like Kester 2331-ZX or Alpha Metals 3355-HB is what we use. It will remove the contamination quick;y without having to scrape with a blade. If you have a large number of bare boards you can run them

Re: Discoloured soldermask

Electronics Forum | Thu Apr 22 18:07:38 EDT 1999 | Tom B.

On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when

Re: White layer appearance on PCB

Electronics Forum | Sun Jan 31 22:55:33 EST 1999 | Dennis O'Donnell

Hello Netters, I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that the LPI

Re: White layer appearance on PCB

Electronics Forum | Wed Feb 03 04:44:43 EST 1999 | Jeff Sanchez

Hello Netters, I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that t

  1 2 3 Next

2331-zx searches for Companies, Equipment, Machines, Suppliers & Information