Electronics Forum | Mon Feb 18 12:09:17 EST 2013 | pbarton
What type of flux material does your solder paste have? I have seen difficulties when attempting to print small apertures with water washable and rosin types. Do you get a good first print and then have problems or is it the same from the start?
Electronics Forum | Fri Mar 03 13:15:55 EST 2017 | emeto
Both Alcohol and Water based should work. I will try to stay away from Rosin/Resin because of the residue - issues in ICT.
Electronics Forum | Tue Mar 07 07:26:43 EST 2017 | emeto
Thank you bruce! I tried similar rosin based 6.5% but it gives me a lot of residue. Anything water based?
Electronics Forum | Fri Jun 07 05:19:23 EDT 2019 | gregoryyork
dont usually see this unless the Rosin hasnt been hardened due to low reflow or excessive pressure on blades squeezing flux out so you have flux rich areas. Are these boards also flow soldered?
Electronics Forum | Wed Aug 21 13:28:20 EDT 2019 | ameenullakhan
And what is the solder paste selection recommendation for the same. 1. Water soluble ( organic based flux solder based ) 2. No clean ( rosin or resin based solder paste ) customer is suggesting water soluble chemistry , which is having lot hot an
Electronics Forum | Wed Apr 06 06:25:56 EDT 2022 | bukas
I had the same looking coating on solder joints when we used rosin in IPA. after switching to water based no clean it never happened again.
Electronics Forum | Tue Jun 26 19:51:31 EDT 2001 | davef
Rosin. A hard, natural resin, consisting of abietic acid [and pimaric acids in Europe] and their isomers, some fatty acids, and terepene hydrocarbons. Rosin is extracted from pine tree stumps. It�s an organic material distilled from oleoresin in p
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
Electronics Forum | Thu May 11 15:11:14 EDT 2006 | patrickbruneel
I assume you talk about wave soldering. No-clean fluxes are widely used since 1987 or earlier and after all these years they have proven to be reliable. If you clean the board or not the dust bunnies etc. will still reach the board surface. If you us
Electronics Forum | Tue Jan 15 16:44:54 EST 2008 | gregoryyork
I found some machine manufacturers put convection nozzles in line parallel with each other instead of staggering them so you get a nice parallel line up the board where there is no flux be it no residue alcohol or VOC Free. The best I could find was