Mechele, you once advised me in an email to use these pads to ”roughen” up the surface of niobium for a brighter finish as opposed to using a polish. I tried this with 4 different meshes spanning range of ”grits” in the set from 100 to 400. I was surprised to see no notable difference from the coarsest to finest mesh. I tried to follow all the metal-free steps: roughed up the surfaces with the pads, scrubbed with Simple Green, rinsed in distilled water (d/water), hot etched, stored in d/water, anodized at 33 volts, rinsed in d/water and dried with hot air gun. Sadly all my hard work didn’t pay off.