I purchased the Midas red/brown to black oxidizer for copper and brass and have no idea how to use it. Does anyone know if I need to dilute it? Do I need to heat the piece? Do I paint it on or dip it? I really want to add some cool colors to copper and I thought this would help but there are no instructions! Thanks!

Have you tried looking the product up on line and seeing if there are instructions there from the manufacturer? If not try experimenting on a scrap. That is always fun but do it outside just in case it stinks. Not always good for spousal relations if it stinks up the house.