Our water-based diamond slurry works great for knives, tools and razors and it can be used on many different surfaces/substrates such as leather, balsa, basswood, denim and felt. We manufacture our diamond slurry at our facility and can customize the concentration to some degree with particle sizes ranging from 9 micron up to 1/10th micron. This is a heavy concentration slurry that works fast and produces excellent results.
We recommend using our slurry on leather (smooth side) that has been lightly sanded with a medium grit sandpaper like 400 mesh and then wipe it down with alcohol. It can also be used on plain smooth leather.