Electronics Forum | Thu Dec 09 00:15:55 EST 1999 | Vinesh Gandhi
Thanks for your feedback. I definitely agree with your viewpoints. Can you send across any documents/papers through e-mail or post them on the smtnet which clearly describes the HARMFUL EFFECTS OF WHITE RESIDUES. My customer's only apprehension is
Electronics Forum | Wed Oct 17 19:12:32 EDT 2001 | scott
Dave's right! Wash the boards RIGHT AFTER reflow, don't let that residue harden. Then you turn around and cure that stuff during the second reflow by not performing the first wash???? wow.... By the way, are you having any problems with white resi
Electronics Forum | Tue Sep 10 22:29:01 EDT 2002 | scottefiske
Many times after initially cleaning in the solvents recommended by the paste/material manufacturer, a light white haze may still be visable...try using a soft bristle brush to remove the remaining residues. By this time the residues that remain will
Electronics Forum | Wed Mar 24 16:28:06 EST 2004 | davef
No-clean flux residues can be either cleanable or not cleanable. The not cleanable type leave a milky white residue on the solder connection after suitable soaking in water. Your flux supplier will have suggestions on the appropriate flux.
Electronics Forum | Mon Apr 22 16:55:42 EDT 2002 | russ
Greetings All, Anybody out there experiencing white residues after cleaning? We currently use a batch cleaner to clean water soluble fluxes. this cleaner makes its own DI water by means of carbon and resin tanks. After cleaning there are residues
Electronics Forum | Mon Jan 18 21:05:15 EST 1999 | Dave F
| I get white residue on my PCBs after vapor degreasing. No comments on the vapor degreaser. Yes, I still use one of these. I use a vapor degreaser and a 1,1,1 replacement solvent due to the quick clean and quick dry times. Anyway, I only get whi
Electronics Forum | Thu Jan 14 22:59:08 EST 1999 | Chris G.
I get white residue on my PCBs after vapor degreasing. No comments on the vapor degreaser. Yes, I still use one of these. I use a vapor degreaser and a 1,1,1 replacement solvent due to the quick clean and quick dry times. Anyway, I only get white
Electronics Forum | Mon Apr 22 20:55:00 EDT 2002 | ianchan
Hi, this is not really a technical solution, just a feedback. we too have a model series using the same WS paste type. it gives a dull solder joint with white residue that can be marginally removed after post-DI water rinse (ie. not 100% removed).
Electronics Forum | Mon Feb 27 19:48:32 EST 2006 | stepheniii
I'm not sure that would be valid. My understanding was that solids were trapped by other non-active flux residue. Which is why you can leave them on and why you see white residue after washing. I think the ROSE test would release particles that woul
Electronics Forum | Fri Sep 09 15:53:22 EDT 2005 | patrickbruneel
If the white residue is from a no-clean flux or no- clean solder flux core you can leave it on the board. (Consult with the flux or cored solder manufacturer) Because after being encapsulated with conformal coating the residue is sealed from humidity
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