On 01/19/2017 10:38 AM, Cameron Kaiser wrote: > Short of that, I generally prefer blowing agents on boards, and > regular cleaners with non-abrasive implements on the front. If I'm > trying to de-yellow, I might remove a little of the top layer with > steel wool if I think the texture can handle that.
For PCBs, I mostly use a soft anti-static brush. If the PCB looks passable at that point and works, I go no further. On the other hand, I've gotten gear with three-quarters of an inch of mouse droppings dried to the texture of concrete. I've resorted to oven cleaner in some situations, which worked surprisingly well. --Chuck
