Electronics Forum | Mon Nov 01 09:43:52 EST 2004 | russ
See Daves Answer above and change it to "paste mfgr." Also most all of the cleaning companies have chemistries. Are you cleaning noclean or W.S.? IPA works if you clean them manually, Or the chemicals that the Ultra sonics mfgrs recommend. Search
Electronics Forum | Thu Oct 21 08:25:23 EDT 2004 | fcox
What are the most common solvents/processes being used to clean paste from metal stencils? Any heat?
Electronics Forum | Mon Nov 01 08:34:06 EST 2004 | fcox
What I am really after is what is recommended to clean the paste from the stencil. What works best? What is really used in common practice?
Electronics Forum | Fri Nov 05 17:29:53 EST 2004 | Steve Stach
Most metal stencils today are cleaned with a water based cleaning solution. 3 choices are most typical: (1) Water only for water-soluble paste (2) Water + Organic for rosin and no-clean (low residues. This affords lower temperatures and is easier t
Electronics Forum | Fri Oct 22 07:35:02 EDT 2004 | davef
Most glue suppliers recommend chemicals and methods for removing the product from stencils. What does yours suggest? Further, search the fine SMTnet Archives for background discussion.
Electronics Forum | Thu Apr 10 18:46:16 EDT 2003 | davef
Look here: http://www.teradyne.com/prods/cbt/products/library/rework/wp_siteprep.pdf
Electronics Forum | Thu Apr 10 11:57:19 EDT 2003 | stepheno
We recently had to replace some BGA's. The replacement ones did not work, and when removed there was residue. Unfortuneatly I didn't get a chance to see the residue. It was described as "fuzzy and grungy". The pads had been cleaned with solder wi
Electronics Forum | Thu Apr 10 14:35:18 EDT 2003 | russ
What flux are you using to put them back on? you should be able to adequately clean the site after removal with alcohol or water depending upon the type of flux. "White grungy" usually comes from a liquid flux such as Alpha 857 being squirted on th
Electronics Forum | Tue Aug 10 05:51:03 EDT 1999 | Gian.D
| | hello to everybody, | | we have a really satisfactory no clean process, both smt/reflow and wave soldering, but we get troubles with defects rework; | | does anybody know how to eliminate flux residues or how not to produce them during rework op
Electronics Forum | Thu Jan 14 16:32:58 EST 1999 | Dave Jurena
Hi all, I thought I'd use this forum to ask a couple general questions on fluxes for manual operations: First - Is it OK to use a wave soldering type flux (specifically OA)? Thinking about activation temperatures and the ramp rate of the wave solder
