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 | Thu Aug 26 22:32:04 EDT 2004 | Indy
Hey, We have introduced a Cleaning Pen from Chemtronics. It removes excess flux after touch up.. This way the operator doesn't have to go everytime to the cleaning room.. Indy
Electronics Forum | Wed Feb 28 17:20:25 EST 2024 | jdengler
Find out were the excess flux is coming from. See if it can be eliminated or reduced at the source. Lokely coming from something other than SMT assembly.
Electronics Forum | Fri Dec 08 23:02:24 EST 2000 | LeeKibler
Beware the foam fluxer. I had a problem with cracked caps that just about drove me off the deep end. I discovered that my foam fluxer air knife was not turned on resulting in excessive flux. The excessive flux (VOC free) was not properly dried off
Electronics Forum | Thu Mar 09 04:02:12 EST 2000 | Wolfgang Busko
We used an air knife using foam fluxer and no clean flux to remove excessive flux from the boards for a better look afterwards. A secondary effect might be that the flux is forced into the vias giving you better results on the top. If you feel a need
Electronics Forum | Thu Mar 09 04:02:12 EST 2000 | Wolfgang Busko
We used an air knife using foam fluxer and no clean flux to remove excessive flux from the boards for a better look afterwards. A secondary effect might be that the flux is forced into the vias giving you better results on the top. If you feel a need
Electronics Forum | Fri Apr 05 20:56:17 EST 2002 | cycorda
Dave, Some spray fluxers are a lot more efficient than others - some will have such little waste that most of it is carried out by the exhaust. One of the benefits of spray fluxing should be that it creates very little excess flux, therefore no n
Electronics Forum | Wed Dec 13 15:19:32 EST 2023 | hhudson
It has been happening in the mornings, and we do have a weak middle element, but our temp is always above 60C. we have it set at 65C. the service manager for the machine assured us that temperature wasn't the issue. Also, our flux application for ERS
Electronics Forum | Tue Jul 27 00:15:04 EDT 2004 | ppwlee
We had a similar application to rewash excessive flux residues through a chemical wash, steam clean, and DI rinse. We currently have an inline cleaner. Can you comment what kind of steamer (made and manufacturer) is being referred to in this discussi
Electronics Forum | Tue May 11 10:43:37 EDT 2004 | Melissa
Has anyone experienced problems lately with excess flux residue left on the board after reflow when using Alpha UP78 OSP paste? We are getting a component failure that the designers are blaming on too much residue. Thanks
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