Frankford Brass Polish, sold in 4, 8, and 32 ounces, is designed to polish brass for people who enjoy reloading. This brand of polish is ranked as being premium and has a pleasant citrus scent. This ammonia-free formula is made specifically for cartridge cases, polishing while protecting brass from becoming brittle. This polish is also guaranteed never to leave any residue. This cleaner is extremely easy to use. To activate media the first time, 3 teaspoons of the polish is added for every 1 pound of media. If media has been used prior, just 1 teaspoon of the polish is required.