Electronics Forum | Sat Oct 29 20:29:30 EDT 2016 | adamjs
Posting here because all the threads asking for feedback on it are locked. We have been extremely happy with the 4300 tacky flux for BGA attachment. Not only is it both washable and no-clean (i.e. wash-optional), it was also the only tacky flux tha
Electronics Forum | Sun Dec 11 22:39:36 EST 2016 | ppcbs
We have been using the Amtech line for over 12 years now with all of our PCB and BGA Rework. The NWS-4400 is mildly active and will give better results with Lead Free Solder. Note that the LF-4300 is considered a No-Clean. However it will show lea
Electronics Forum | Thu Dec 07 10:23:36 EST 2006 | fredericksr
Has anyone experimented with the Amtech 4300 flux that claims to be a no-clean flux that is easily removed with water? If so, how did it go? Is this flux truly removable with water only while creating adequate solder joints? -OtheRuss
Electronics Forum | Thu Sep 17 14:11:28 EDT 2009 | mikesewell
Try AMTECH 4300. Although a No Clean, it can be cleaned with only hot DI Water. A saponifer will help but the residues are easy to remove. RELO classification.
Electronics Forum | Fri Jan 26 14:32:44 EST 2018 | dleeper
Amtech LF4300 is exactly what your looking for. http://www.inventecusa.com/assets/lf-4300.pdf Insert standard "I receive no benefit nor compensation from the aforementioned company"
Electronics Forum | Thu Mar 27 16:21:33 EDT 2008 | mikesewell
AMTech makes REL0 (4300 series) pastes that are water washable. You might want to try a sample...
Electronics Forum | Mon Dec 11 18:51:54 EST 2006 | MFG CAVEMAN
I saw an ad for this stuff and it sounded too good to be true. Also wondering who has looked beyond the ad.
Electronics Forum | Fri Apr 13 12:24:07 EDT 2007 | teamcanada
We assemble for a customer that is having an inconsistent low level analog interference we believe with the no clean flux residue from Alphas OM5100 solder paste. We are considering testing Amtechs 4300 water washable no clean paste. We will test bot
Electronics Forum | Fri Dec 27 14:27:40 EST 2019 | slthomas
We switched to a REL0 T3 paste, Amtech LF-4300. It wets the castellations more consistently. I believe that in our case it was more of a plating wetting issue with the parts, but yours sounds more like a pcb finish or thermal issue. That larger pad
Electronics Forum | Tue Jun 05 11:52:01 EDT 2007 | rgduval
We just tested AMTECH's LF4300 with good results. Excellent reflow/profiling capabilities, good processing. And decent cleaning. I say decent cleaning, because we did run into a small issue. While using Qualitek's LF paste, we experienced a lot o
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