TechDiamondTools Diamond Polishing Compound Polishing Paste 14,000 Grit 0-1 Microns for Marble Glass Metal Rock Jewelry Resin Silver Chrome Gemstone with High Concentration of Diamond Powder USA Made

This paste (14,000 grit) does wonder to my straight edge razor after the 10,000 grit stone (using flat leather strop). I might still get the 50,000 grit to get a perfect edge, but it's already close to being "as new".

For i phone screen

Works nicely; no complaints. I am able to get a nice polished edge, spending a minute or so on the strop. I think it's a worthwhile upgrade from the standard "green crayon" (chrome oxide). I've treated a couple of strops pretty liberally, a few times each, and still have about 2/3 of the syringe left. For best results with leather, start with a light sanding to open up the material and remove old compound/steel if present. Then allow plenty of time for the paste to dry, or you'll end up wiping a lot of it off the blade. If it feels cool to the touch, it's not ready.

Yes. It a very good product. Able to remove the scratches easily.

I used this to get rid of a few light marks on my S24 phone screen. First time I tried, all of the light marks disappeared with very little effort at rubbing. It was almost like a magic trick. They remained gone for a couple weeks at least until I noticed them again one day. So the second time around I used a little more effort. Maybe 3 minutes of rubbing on each spot. It's been a month and they are still gone. I'd highly recommend this for very light marks or scratches at least.