Electronics Forum | Mon Mar 29 11:15:58 EST 2004 | davef
Grant & JDumont: You should not have this white residue on your wave soldered connections, using VOC flux [but you know that, anyhow]. Applying too much flux is the likely cause. Other possibilities are: * flux contamination * solder contamination
Electronics Forum | Fri Apr 02 12:40:59 EST 2004 | Ron Herbert
White residue can often be caused by overheating the flux. When this occurs the flux is polymerized, basically turning it into an epoxy. You can usually determine if this is the problem by taking a pencil eraser to it. If it comes off, you have overh
Electronics Forum | Fri Oct 16 13:11:49 EDT 1998 | Steve A
The Kyzen product was brought to my attention from a chemist at Kester solders when I asked him what could remove no clean residue from a PCB that had been built weeks earlier. We soaked it in the Kyzen for 8 minutes and ran the board through the aq
Electronics Forum | Thu Jan 23 14:19:56 EST 2003 | Mike Konrad
Hi Randy, No-clean flux needs to be activated in order to burn off the volatiles in the flux. This normally occurs partly during preheat and certainly during the reflow or soldering process. In most hand soldering applications, an operator applies
Electronics Forum | Mon Feb 25 21:13:12 EST 2002 | davef
No, none of us can tell you what is the acceptable level of halide content or contamination in flux residue. The level of harmful residues on your product helps determine the reliability of your product. We know nothing of your product, its custome
Electronics Forum | Thu Mar 28 16:00:31 EST 2002 | bschreiber
Hello Dave, Water Washable (Organic Acid, OA) post solder flux residue is designed for cleaning in plain water without cleaning chemical additives. The real advantage of water washable flux was that it cleaned in plain water without additives � no
Electronics Forum | Sat Nov 21 16:23:05 EST 2009 | davef
Patrick I can only agree with you about low residue (alcohol based) fluxes, providing you apply the amount specified by the supplier. Amounts in excess of the specified amount can have harmful effects.
Electronics Forum | Wed May 27 09:56:39 EDT 1998 | Chrys
| | | We recently made the switch to no-clean and the wurface mount is turning out beautifully. However, the wave solder process continues to put up a fight; we are getting a white residue on the surface of the PCB. The residue is not localize
Electronics Forum | Mon Nov 16 06:54:21 EST 1998 | Michel SORGIUS
I buy 6 spray system by ERSA (http://www.ersa.de)in new solder wawe but also in retrofit. We had a very good experience whith this system. We used INTERFLUX has low residues flux. (IF2005M) This is a belgium company. Good luck Michel
Electronics Forum | Mon Oct 02 20:10:27 EDT 2006 | davef
Choices are: * Buying a helmet. * Using a paste with low residue flux. Where are you located that you can use Triklone N [1,1,2-trichloroethene, CAS No: 79-01-6, C2HCl3]? As a solvent replacement for Triklone, several companies offer proprietary bl
