Electronics Forum | Mon Mar 29 10:01:28 EST 2004 | jdumont
Patrick, I would like to try a sample of your product. Please forward me a link or email address for where I need to go to get one. That way I can see it perform myself. Thanks Josh
Electronics Forum | Mon Mar 29 10:27:30 EST 2004 | patrickbruneel
Thanks Josh, email your company name, address and phone No. to sales@no-residue.com and a sample will be send to you. Patrick
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 | Mon Mar 29 11:20:04 EST 2004 | jdumont
Hi Dave, its not the connections that have the white residue. It is the surface of the board. The whole thing turns a milky white color. I have pictures if anyone would like to see them... Josh
Electronics Forum | Mon Mar 29 13:16:10 EST 2004 | russ
The only time I have ever had this happen was with un/not fully cured solder resist. Only shows up after wave. I believe that is because of the higher temp than reflow but don't know for sure. No help but what the hey Russ
Electronics Forum | Mon Mar 29 13:59:27 EST 2004 | jdumont
Well how can I correct this? Would baking the board prior to any operations help? Is this an issue I should get the PCB manufacturer involved with, or something that is common and just live with it?
Electronics Forum | Tue Mar 30 07:20:20 EST 2004 | davef
If you can rub it off, it's unlikely to be a solder mask problem. Try the "excess flux, flux contamination, solder contamination" angle.
Electronics Forum | Fri Apr 02 01:05:34 EST 2004 | Grant Petty
Hi, Thanks for the info. How clean can wave soldering get? We are looking at a carrier that masks off most of the board when we run it through the wave, so hopefully this works. Regards, Grant Blackmagic Design
Electronics Forum | Fri Apr 02 01:11:29 EST 2004 | Grant Petty
Hi, We have the spray fluxer, and I will have a look for the manifold. The guys thought they had purged the system but it's worth checking. Regards, Grant Blackmagic Design
Electronics Forum | Fri Apr 02 06:26:13 EST 2004 | Phil James
Take a look at the downloadable paper on the subject of "White residues" available from NPL www.npl.co.uk/ei (Downloads) By the way, we also suffer from this problem!
