MG Chemicals 4140A Flux Remover for PC Boards, 1 Quart Bottle

In my career, I'd used commercial/industrial flux remover available from my job. Now that I'm retired, my 'free' source was gone :-) but I wanted to continue to do electronics. Based on the MSDS sheet, this solvent is the closest to the commercial/industrial stuff, without the acetone. With no acetone, this flux remover is, in my experience, plastic-safe. If additional 'cutting' is required, I add a splash of acetone (nail polish remover) to get the job done. Very satisfied with the performance, easy to store, no objectionable smell, and inexpensive.

Works well. Better than using alcohol. Kind of expensive for 32oz.

The perfect solution for flux removal. Note it must be used with a brush which is not included.

Great flux remover for PC boards, removes flux without damaging plastic parts. To other reviewers complaining of residue - I've noticed that some PCBs, especially cheap Chinese boards, often have some kind of coating which exhibit this problem. Not sure if it's the flux that they use or some other by-product of manufacture. The flux remover dissolves this coating and it precipitates out when the cleaner evaporates. There is nothing subtle about this process - it cakes in through holes and generally leaves quite a mess. Liberal application of flux cleaner will remove this residue. Note that I have not seen this on higher quality PCBs (including those fabricated via OSHPark, from SparkFun, and Adafruit). I've also noticed that this product sometimes removes soldermask and/or silkscreen from these same problematic boards - again, not an issue with higher quality boards.

This is my go to remover. Works like a charm! Big bottle will last me probably 6 months.

MG Chemicals makes some of the best products for electronic contact cleaner and circuit board repair.

Always works great on PC boards

This is one of the best flux removers I have used.Its also smells great (not that you should smell it).It makes short work of MG 835 rosin flux.Id definitely recommend getting a liter and decanting it in to a smaller jar for use on the bench.I like the push top alcohol dispensers.