Electronics Forum | Thu Apr 05 07:15:55 EDT 2001 | Jerry
Same query: Do we really need to clean the board with when using RMA ? I've been told that aqeous is not needed to clean the board, what cleaner is suitable and how?
Electronics Forum | Tue Aug 26 15:51:42 EDT 2008 | kpm135
Did you check to see if the manufacturer's recommended reflow profile varied significantly for the new flux?
Electronics Forum | Mon Nov 12 15:20:59 EST 2007 | russ
WE discontinued using the thinners about 13 years ago, we have not used RMA flux however. The "thinnners" supposedly have some solids content in them to keep A balance but I say B.S. and just use alcohol, we have never experienced any issues whatsoe
Electronics Forum | Tue Aug 30 15:05:23 EDT 2005 | Shean Dalton
Dear Ing, Have you analyzed why some RF device aren't operational after washing? An assumption is that failures are related to the ultrasonic energy applied. Other possibilities are for poor rinsing, poor drying, inadequate washing on those failed
Electronics Forum | Mon Jul 16 21:29:03 EDT 2001 | davef
Cleaning RMA with water is bad news. It will turn your solder connections white and remove none of the RMA residues. There was a thread on removing RMA within the past two weeks on SMTnet. Check the fine SMTnet Archives. Additionally, look at M
Electronics Forum | Wed Sep 15 05:15:24 EDT 2004 | Adam
I have chceked the fluxing application, I seem to be getting good consistent coverage across the board using our foam fluxing system. Good flux penetration on the top-side of the through-hole plating, as this was checked using a fax paper.There is no
Electronics Forum | Wed Feb 18 03:11:23 EST 2004 | Sam
Should I have any concerns with operators using flux for handsoldering, straight out of a 25 ltr drum which is not even thinned dowm to the correct SG level. The flux is Alpha 615-25 RMA based and we use it in our wavesoldering process. Thanks in ad
Electronics Forum | Mon Nov 20 15:10:56 EST 2017 | bstogsdill
Aerospace/military application- we have recently installed an SMT line. Our prior cleaning of RMA flux was Isopropyl Alcohol only, but with the reflow oven on line, the flux is now baked on. I am looking into FLUX OFF cleaner for removal of t
Electronics Forum | Thu Jan 16 15:16:52 EST 2003 | Mike Konrad
You are comparing apples to oranges. No-clean fluxes, because they are designed not to be cleaned off after reflow, contain very low solids. Normally, no-cleans have a solids content of 2% - 5%. Your basic RMA has a solids content of 15% to 30% (s
Electronics Forum | Thu Jan 16 15:55:31 EST 2003 | MA/NY DDave
Hi I have a funny feeling that Mike Konrad and I know each other from IBM-Endicott days, yet I could be wrong. It would be funny?? Mike gave a good answer. The Rosin or Rosin Mildly Activated Flux (RMA) if on the board at ICT (In Circuit Test) wil
