Cleaning up brass - 2 different problems

File: tarnish2 (1) - Copy.jpg (387KB, 1244x1186px) Image search: [Google]

387KB, 1244x1186px

Hi there /DIY,

I've got a load of brass that i need to clean up real good - the problem in both cases is that i have hundreds of pieces to clean so am looking for some solutions that are simple and not overly backbreaking.

problem 1 - one set of brass arrived with significant tarnishing

problem 2 - the second set of brass was laser cut with a plastic backing on it that has burnt on. its a pain in the ass but will come off with some acetone and scrubbing with a magic eraser.

because of the use i have planned or the brass i realy need to avoid introducing any scratches at all so want to avoid abrasion as much as possible.

any thoughts here about how best to clean up? I'd ask over in /k but y'know .... I'm pretty liberal

tarnish pic attached

plastic in next post