Electronics Forum | Mon Apr 16 17:36:25 EDT 2001 | steveb
Does anyone know of a reason, other than visual, contact, or testability, for cleaning a no-clean residue off a board? Are there any SIR or long term reliability advantages to cleaning a no-clean residue?
Electronics Forum | Mon Dec 06 15:24:46 EST 1999 | C.K.
I suggest that your customer is living in a land of washable >fluxes and has not kept currect with the vagaries of no-cleans >and your mission is to educate them of: >1 Costs of washing a no-clean and then trying to remove the >white residue >2 Ac
Electronics Forum | Mon Dec 28 10:55:11 EST 1998 | Ali Bokhari
How does flux residue effect the quality and reliability of the board. This is part of our spray fluxer evaluation. One of the our concerns is spots of residue on the bottom side. Any input or reference to links on web will be greatly appreciated. `
Electronics Forum | Fri Dec 16 10:25:37 EST 2005 | solderiron
Rather than cleaning a water soluble flux residue off the board, by encapsulating the product. covering the board or the component with lets say a Hysol encasulant. Would this prevent the active flux residue from migrating and deteriorating the elect
Electronics Forum | Mon Feb 13 12:14:13 EST 2006 | davef
Some low residue [no-clean] flux residues are cleanable, others are not. Talk to your paste supplier for a recommendation of cleanable low residue flux.
Electronics Forum | Tue Aug 22 13:55:44 EDT 2006 | Steve
Using no-clean flux going thru wave when comes out there is a bit of flux residue left on board. If wiped the residue shows a yellowish tint. Any ideas what this means how to get rid of it?
Electronics Forum | Wed Dec 20 18:26:28 EST 2006 | sjlevin@ix.netcom.com
We use a solvent called AK-225ATE (there is also AK-225T) that works great for removing RMA flux residue and no-clean flux residue. Info at http://www.AK-225.com
Electronics Forum | Mon Apr 23 11:55:42 EDT 2007 | davef
We agree with Grayman. You should clean your fixtures. If you apply [leave] low residue flux in amounts greater than the supplier recommendation, the remaining residue can cause damgerous corrosion. Certainly it is then no longer low residue.
Electronics Forum | Thu Mar 20 16:34:15 EDT 2008 | guhansub
You need to use speial cleaning solution to clean the residues from no clean pastes. Alpha has a solution,(I think Alpha 2010)that can clean no-clean residues. Zestron is another company which specializes in cleaning no clean residues. contact Alpha
Electronics Forum | Sat May 31 09:49:55 EDT 2008 | gregoryyork
physically lift board of after fluxing to visually see what is covered, or using thermal fax paper to get to see coverage works well. PROPER low residue or no residue fluxes leave benign insulating residue behind not corrosive.
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