Whenever I have someone in my shop that's into knives or otherwise into sharpening tools and they start looking at my assortment of stones and what have yous and they see one of my strops they will always ask me - how do you get your chromium oxide so neatly and with such full coverage onto your strop? If you've ever rubbed a chromium oxide block onto a piece of leather you will know the problem. Well I had someone else ask me again yesterday so I thought that would be something interesting to share on this forum for those that don't know. Scrape some chromium oxide with a sharpish tool off the block so that you have a small handful. Pour a small amount of turpentine (mineral spirits) into a small bowl and mix the chromium oxide with the turpentine. Using something like a 1" brush, paint the solution onto the leather. Don't worry if all of the oxide hasn't dissolved, as long as you have a green soup that will do. Wait around five minutes and scrape the excess off the strop with a knife and you're done.