Electronics Forum | Thu Dec 15 08:54:43 EST 2005 | Amol Kane
my 2 cents here --- Even though the boards need not be cleaned after SMT when using no clean flux, you will still have to clean them before conformal coating.....and most solvents used to clean boards before coating will take out the no clean flux re
Electronics Forum | Tue Dec 22 12:08:06 EST 2015 | aqueous
The overwhelming technology used in post-reflow cleaning of electronic assemblies is aqueous. Prior to the 1990's, solvents and vapor degreasers dominated the cleaning industry. After the popular solvents were banned via a United Nations treaty, alte
Electronics Forum | Tue Mar 09 14:23:03 EST 2010 | zanolli
Hello SMTnetters We have a unique application requiring cleaning of an aggressive OA flux. A vapor degreasing process or the immersion of the parts in boiling solvents has some process advantages over an ultrasonic aqueous process. These advantages
Electronics Forum | Tue Feb 24 14:44:22 EST 2004 | davef
IPA is a poor choice for a cleaning solvent. * As you mentioned, the flash point of IPA (~12�C TCC). This is sufficiently low that all electrical equipment within a few feet of the bath should be flameproofed or intrinsically safe, if you don't want
Electronics Forum | Fri Nov 05 03:53:29 EDT 2010 | Mark
The smallest particle sixe for type 3 paste in 25 microns. This is far to big to remain airborne.Therefore I would suggest to continue to use air to clean stencils as it does clean the apertures effectively.What solvent is used to clean the stencils?
Electronics Forum | Mon Jan 06 11:04:39 EST 2003 | slthomas
Bummer. Are you using the EPAC stuff that they recommend, or something else? We used IPA for a while, then changed to a run-of-the-mill stencil cleaning solvent (aliphatic hydrocarbon based, like the EPAC solvent) that's a lot cheaper and does the
Electronics Forum | Tue Nov 03 18:09:17 EST 2009 | gregoryyork
I think most have summed up the first pictures also is the drillng looking like it is misregistered as well. Better to do a solvent test to determine resist cure not the old stuff the newer chemicals show under cure problem much better. Try your st
Electronics Forum | Wed Nov 08 20:45:32 EST 2000 | Dave Rygwalski
We are using Austin American Technologies with Petroferm solutions and have excellent results using the same two types of solvents for cleaning stencils, adhesives and miss print boards. I average about five hundred cleaning cycles before we have the
Electronics Forum | Wed Mar 24 15:15:35 EST 2004 | davef
I think you can effectively clean under any other low standoff device. It's an issue of surface tension, pressure, and flow rate. DI water is the starting point, but the surface tension of straight DI water makes it difficult to get under low stand
Electronics Forum | Thu Nov 03 01:27:10 EST 2005 | pavel_murtishev
Good morning, Our automatic cleaner simply doesn�t clean. When I am inspecting clogged apertures I execute �cycle wiper� command few times. After wiping cycle apertures remain clogged. Zero effect. We tried to use solvent in production to improve cl
