Ive had good results, but it sometimes leave a shiny residue that makes varnish or paint hard to stick. Some brake-cleaners sold as non-flammable use chlorinated solvents, I have no experience with that (its not sold in Europe) Burning spirits: contains mostly ethanol and methanol (usually 70-20 mix others), easy to source in grocery stores and sometimes sold as barbecue starter. There may be others, but make sure you test whatever you find. It did a fine job cleaning all but the crustiest rosin flux without collateral damage.Īlas, almost all of the cheap and readily available aerosols have acetone as the principle ingredient, mixed in with methanol, ethanol, and assorted ingredients that together will probably make for a bad day.Ībout the only US-sold brand without acetone that we could find was Keller-Heartt, which lists only naptha and ethanol on its SDS. The brand he tried was Normfest Bremsenreiniger MC-1, a German brand that according to its Safety Data Sheet contains only hydrocarbons like alkanes, butane, and propane. He suspected that they might contain acetone, which is prone to yield unfortunate results with solder resist and silkscreen on PCBs, so some tests were in order.
If you dont, youre probably out of luck, since the COVID-19 pandemic has pretty much cleared IPA out of the retail market.īut dont fret: depending on where you live, alternative PCB cleaning solutions may be as close as your nearest auto parts store. If youve got a manufacturersupplier that you know is safe and have tested out, thats fine, although with each new container Id test it again, as the manufacturer could easily change the formulation at any time. It is mandatory to procure user consent prior to running these cookies on your website. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies will be stored in your browser only with your consent.īut opting out of some of these cookies may have an effect on your browsing experience.
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