These are paper textures and can be used with metal clay or with a rolling machine (for sheet metal). With Metal Clay, I am at 15 uses and still going strong. For sheet metal in a rolling mill, because you are compressing the patterns with high force you will yield a LOT less usage compared to metal clay.
Do NOT use a release agent that has essential oils in it. Do NOT use olive oil. My recommendation is to use the Aussie Lube as that is what I use and have had success.
Please watch this video – starting at 14:00 for directions – HERE