Electronics Forum | Tue Feb 23 16:45:36 EST 2010 | dyoungquist
Davef is right on as usual. We are doing exactly what you do. Some smt with no clean paste then the plate through connectors on our selective solder machine using water soluble flux. We then clean with a ultrasonic water process. We do see the re
Electronics Forum | Thu Feb 25 03:37:25 EST 2010 | xps
Sorry, but I don't know this brand. Anyway pay attention, because if the chemistry is resin based, is difficult to clean and the residuals may be hygroscopic. So, I only can suggest you to read the data sheet and follow the instructions by the solder
Electronics Forum | Fri Dec 01 14:12:50 EST 2000 | Jim M.
My company currently uses water soluble paste for our SMT process. We were having trouble retaining hot water in our in line, closed loop DI cleaner. The cleaner kept shutting down when the water temp. dropped below 125C. As a result, the conveyor
Electronics Forum | Fri Mar 31 15:58:07 EDT 2017 | jutikagokarn
Thank you for your response. We build boards on an SMT line that is shared with other companies too and are currently using water soluble flux based solder paste on both boards. We realized an issue with washing on one of the boards so requested to
Electronics Forum | Fri Mar 31 17:13:04 EDT 2017 | dontfeedphils
Clean everything to do with the print process during the switch adequately and you shouldn't have an issue.
Electronics Forum | Fri Mar 31 18:10:21 EDT 2017 | jutikagokarn
Thanks Phil! I appreciate the response!
Electronics Forum | Fri Mar 31 11:56:36 EDT 2017 | jutikagokarn
We are trying to build two different PCBs - one with no wash flux solder paste and the other with a washable flux solder paste. How difficult is it to use the same SMT line and switch between the two pastes? I assume there will be some cleaning invol
Electronics Forum | Fri Mar 31 13:59:21 EDT 2017 | westshoredesign
Need more information. BUT if your strictly considering just the paste change. I would imagine your changeover would be little to no different than changing to the second board if you were using the same paste. Maybe take extra care cleaning your sq
Electronics Forum | Fri Apr 07 09:03:07 EDT 2017 | pavel_murtishev
jng123, Process-wise using one solder paste type is preferred regardless of paste type. If you want clean both paste types in one cleaning machine your manufacturer might have, this potentially could lead to white residue issue due to chemical reac
Electronics Forum | Thu Jul 14 09:42:36 EDT 2005 | saragorcos
Our facility helps customers clean no-clean soldered boards on a regular basis, and it definitely can be done but is a little more challenging than boards built with water soluble flux - one piece of advice I would give is to use low water pressure (
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