Step 3Prepare the plate
Cut the plate down to the correct size and shape and finish off the edges - it's easier to do this now than after etching. Most importantly though, clean the plate! Use the kitchen scourer to scrub the front of the plate until it's shiny (but it doesn't have to be polished) and free of any tarnish or dirt. Then, use the kitchen towel dipped in acetone to thoroughly clean the surface to remove any oil or grease. Try not to touch the face of the plate now - the cleaner the plate is, the better the toner will transfer later.
Mind out here - acetone is extremely flammable. If you get any on your hands, it'll dry out your skin, so use some moisturiser on it afterwards.