This is why we named our company "Metal Markers". We decided to carve out our niche by engraving for commercial industries. Although we do a lot of metal marking, we've engraved just about everything we can think of from food to soap! Of course we do trophy brass, plastics, and wood too.
To mark stainless we use an expensive spray called Thermark. It allows a CO2 laser to mark on the stainless. It leaves a high contrast black mark that is basically a ceramic deposit. The only way to get the mark off is to grind it or machine it. Any part numbers or logo's can be done this way. Even photos can be engraved on stainless using this process.
