I was sharpening a lawnmower blade in a vise on my workbench with a file today. My SRD modular was out on the bench, but about 2-3 feet away, with the leather side up.

Later after honing a razor, I picked up the strop and it was covered with metal filings! I brushed it lightly with a damp paper towel, then a dry one, then palm rubbing. Then I used it.

Results seem okay. No huge scratches or chips that I can see. I guess it's fine but I'm a little freaked out.

Does anyone have an idea about this? Should I just keep using it, clean it a certain way, or replace the leather?

Michael