View Full Version : How to Clean Oxide of bare copper PCB's

04-01-2012, 10:16 PM
Hey, this ones really simple;

Mix 500ml of clean water ( get out of tap ) with 50g of Citric Acid ( buy at supermarket ).. Spray bottle or rag.. Quick wipe over your pcb, with paint brush or similar and it will clean them up nicely, without too much drama.

04-01-2012, 11:29 PM
thanks andrew, i have a few that are like this from sulfer.