Electronics Forum | Tue Dec 21 11:46:29 EST 2004 | KEN
Are you adding liquid flux? Or paste "Gel" flux? If liquid flux: This, in my mind, is an unacceptable technique. Why? 1. Can not control metals content. 2. Probably not adding the same chemestry flux...as paste flux has many different addi
Electronics Forum | Thu Mar 22 17:37:06 EST 2001 | davef
Hey!!! Watch it!!! I don�t want to get you believing too much of this stuff. But if you bought that, listen to this � some circuits are so critical with that skin effect stuff that they use silver as the top level solderability preservative. Turn
Electronics Forum | Thu Mar 22 14:12:09 EST 2001 | slthomas
Interesting...the very reason we use water soluble paste on some of our boards is for that reason, although I've never been able to get anyone to show me something in print that supports it. It's just what engineering has told me. We currently have
Electronics Forum | Thu Apr 03 22:56:48 EDT 2008 | davef
Potential impacts of using expired solder paste are [University of Bolton]: * Changed paste rheology. Result: poor print quality * Loss of solvents. Result: reduced flux activity * Changed flux formulation. Result: More difficult to clean flux residu
Electronics Forum | Mon Sep 18 19:58:10 EDT 2000 | Dave F
broad answer. There's tons of suppliers. Go to "Circuit Assembly" magazine web site and look-up flux suppliers in the "Buyers Guide." Broad line suppliers are Kester, Alpha ... They will make you answer: I'm joining bla, bla, bla metals, using b
Electronics Forum | Mon Jul 05 18:45:01 EDT 1999 | JohnW
| Is the no clean solder paste as good? We are wondering if we can elliminate the wash when we change from through hole to surface mount. | John, No clean is as good as your process, and the paste you are using. Everything I do is no clean and I h
Electronics Forum | Tue Jul 06 10:12:44 EDT 1999 | John Thorup
| | Is the no clean solder paste as good? We are wondering if we can elliminate the wash when we change from through hole to surface mount. | | | John, | | No clean is as good as your process, and the paste you are using. Everything I do is no cle
Electronics Forum | Mon May 09 15:27:05 EDT 2005 | jdumont
We used the 92J a couple of years ago for a while. It performed very well for us. However when we started batch cleaning our assemblies the 92J post solder residue was not very easy to remove so we switched to Kester 256 which cleaned better. JD
Electronics Forum | Thu Jun 26 13:55:56 EDT 2008 | dyoungquist
Water will not remove no clean flux residues because they are not water soluble. Solder paste with no clean flux should only be used when the assemblies do not need to be cleaned. That said, you can buy special cleaning solvents specifically for re
Electronics Forum | Mon Jan 24 16:37:26 EST 2000 | Kris W
To all, This may appear to be laziness on my part, but I need to ask for some advice. We are in the process of qualifying no-clean solder paste to replace or current RMA paste. I have performed qualification runs and extensive reliability testing
