Electronics Forum | Sun Jan 26 22:28:46 EST 2003 | iman
we had a project like this once. switched to using "genosolve" chemistry (US source, expensive) in conjunction with a degreaser machine, works fine if you can spend the money.
Electronics Forum | Mon Jan 27 12:02:00 EST 2003 | Mike Konrad
Dave is correct. No-clean flux + water = white residue (unless the proper chemical is mixed with the water). Additionally, no-clean flux + IPA = white residue. Many saponifiers work well as do other cleaning agents. White residue may also be a re
Electronics Forum | Mon Feb 03 11:17:55 EST 2003 | Randy Villeneuve
White residues are a common problem when cleaning no-clean fluxe residues. The white residue forms when the flux residue is partialy removed, etc. Alcohol should not be your only solution for cleaning. In general, solvents may attack some plastic par
Electronics Forum | Fri Nov 03 11:30:29 EDT 2017 | davef
regarding dwl comment, "For low volume hand assembly, deionized water or IPA should work fine." Deionized water: Deionized water is corrosive. It needs to be removed. Proof? Drop a copper coin into a covered jar of DI water and watch what happens ov
Electronics Forum | Fri Nov 03 15:43:20 EDT 2017 | dleeper
IPA and DI water are both very common and effective methods of cleaning PCBAs. http://www.zestron.com/sa/cleaning-applications/smt-electronic-cleaning/pcba-cleaning/aqueous-cleaning.html http://blog.gotopac.com/2010/11/18/ipa-as-a-universal-cleaner
Electronics Forum | Thu Nov 02 15:45:04 EDT 2017 | dleeper
For low volume hand assembly, deionized water or IPA should work fine.
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 | Tue Aug 21 13:24:50 EDT 2012 | cyber_wolf
As a side note: A lot of machine manufacturers call out IPA as a "degreaser". As an experiment put a dab of grease in a container with IPA then put some in a container with mineral spirits. Shake them up and see which one dissolves the grease. It's
Electronics Forum | Wed May 08 23:48:01 EDT 2002 | ianchan
Hi mates, someone told us to use mild HCL acid 5% to 10% solution and submerge the LCC parts into this solution. hopefully this will clean off the varient copper oxide layer on the LCC leadless terminal wall. after the HCL soak, submerge the parts
Electronics Forum | Wed Feb 15 02:36:12 EST 2017 | bukas
yep, thats it. you will need to clean the whole pot. I used some dishwashing wire and Kyzen, and then removed Kyzen residues with IPA.
