Electronics Forum | Wed May 22 08:43:40 EDT 2002 | pjc
I have experience cleaning NC for military boards. The reason for cleaning the NC is due to conformal coating requirements. Zestron Vigon A200 and Atron AC 100, as well as Petroferm Hydrex DX have both been effective at cleaning Alpha UP78 NC paste.
Electronics Forum | Wed Feb 26 13:15:52 EST 2003 | Mike Konrad
The specific answer depends on what your specific application includes. #1: What are you removing? (solder paste, adhesives) #2: What are you cleaning? (stencils, screens, misprints, pallets) #3: What type of machine are you using? (Spray-in
Electronics Forum | Wed Jul 21 17:49:52 EDT 2004 | jsk
problem: Too many solvents and boards are not clean Flux remains on the board after vapor degreaser and "Powdery" white residue after vapor degreasing Flux type is kester 186 Process: hand solder High Temp alloy, spot clean after hand solder e
Electronics Forum | Tue Jan 17 10:29:10 EST 2006 | Mike Konrad
Armakleen is compatible with CPVC as are most aqueous-based chemistries. Armakleen, in its day was a superior chemistry. It was the first of the aqueous blends to offer bright solder joints (earlier saponifiers commonly dulled solder joints). Arma
Electronics Forum | Thu Jun 07 08:55:01 EDT 2007 | grics
Well... Some are worse than others... How can you identify that it is caused by uncured mask and not flux residues? The flux is from indium, 3592. Some research in their tech library revealed that either Kyzen or Zestron would work, which is the re
Electronics Forum | Fri Mar 12 18:12:15 EST 1999 | B. Walton
Spray cleaners are poor alternatives to todays ultrasonic stencil cleaners. Ultrasonics are the way to go and you can use rather benign water based chemistries to get the job done. As for screening adhesives and cleaning glue residue with spray wands
Electronics Forum | Thu May 06 09:24:06 EDT 1999 | Joe Manzur
Kevin, We are also looking at printing adhesive. Our application involves printing glue on the underside of the board, once it has gone through the dip, axial & radial process. In otherwords, there are leads cut and clinched and we have to mill out
Electronics Forum | Wed Feb 26 23:59:48 EST 2003 | Mike Konrad
Grant, No-Clean paste + IPA = White Residue! #1: Stop using IPA #2: Switch to either a solvent-based de-fluxing chemical or an aqueous-based de-fluxing chemical. If you are using an ultrasonic cleaner for your boards as stated, do not use sapon
Electronics Forum | Wed Apr 30 19:55:21 EDT 2003 | Mike Konrad
In all likelihood, you may not be leaving flux on the board rather you may be leaving saponifier on the board. Improper rinsing is a leading cause of cleaning related board failures. The problem with some inline cleaning systems (especially old o
Electronics Forum | Fri Mar 12 18:30:11 EST 1999 | Bill Schreiber
| We are a manufacturer of Ultrasonic stencil cleaning systems. We do not promote our own chemistry, rather we recommend that the user choose a chemistry that best suits the application and environmental considerations. | | We have extensively tes
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