Glass Polish 1.7oz (50ml) GP-PRO Glass Polishing Compound for Professional Polishing of All Glass Surfaces - 2.3 microns

The window was a 30+ Y/O Viking that was original to the house. Many years of lawn sprinklers had left the glass very spotted with calcium and silica. Wasn't sure if this would work, or if I had the right equipment to apply it. Didn't have a orbital polisher but I did have a small orbital sander, and I found some 2000 grit sanding disks in my stash, which I though should work. I used small dabs of the polishing compound, the 2000 grit disks, squirted water on the glass as I polished. The whole process was much easier than I thought it would be and it turned out really great!

Wow, I'm so pleasantly surprised that this worked!! I had been setting an amethyst cabochon into a sterling ring shank I made & scuffed the sides of the stone while doing so. Due to the expense & it was already set, I didn't want to ruin the ring by taking it out or starting over!I bought this cuz I had heard that cerium oxide may work to take scratches out on some gems with a flex shaft. I went over it 3x with the cerium oxide on a hard wool felt wheel. Then I went over it once more with this on a soft wool felt wheel. After cleaning it up, I couldn't believe there was ever a scuff present! Good as new, and it didn't affect the silver either!! I highly recommend this stuff. I'm glad to have it around in case I ever scuff another stone. Great product!I forgot to take before pics, but I will try to attach a picture of the unblemished amethyst after polishing with the cerium oxide.

Seems to work pretty good on glasses

Works well for minor glass scratches.

I purchased the Glass Polish 1.7oz (50ml) GP-PRO Glass Polishing Compound specifically to remove minor scratches from a glass surface. Despite following the instructions carefully and applying the product as recommended, the scratches are still clearly visible. There was no noticeable improvement, even after multiple applications.For a product marketed as a professional-grade solution, I expected better performance. Unfortunately, this did not deliver results and did not live up to its claims. I would not recommend this product if you're looking for an effective scratch removal solution.

Didn't really tell a difference between using this and just cleaning glass like I normally do.It didn't remove much of anything from the glass using a machine or by hand. Waste of money honestly

A little goes a long way when working it with a buffing pad.. I’m very impressed. Didn’t need anything coarse. A simple, firm sponge drill attachment made polishing my windows on my truck addictive. The product is tough and effective. Easy to use 10/10

Bought a pickup with passenger and driver's side windows so streak stained that I sometimes needed to roll down the windows when pulling onto a crossroad to see traffic when the sun was especially bright. Followed manufacturer directions, using a cordless drill and a buffing wheel from an old headlight restoration kit I had sitting around. In about 30 minutes both windows were probably 95% restored to like new condition. If I study closely I can still make out where some of the streaks were...but that's because I know where they were. Absolutely no vision clarity issues anymore. I recommend this product.