Excel Impex Combo Pack of Glass Polishing kit Cerium Oxide 500 gm with Glass Polishing(Namada) Felt Disc 4" Dia (M-10) and Drill Adapter for Removing Fine Scratches and Stubborn Dirts on Glass

Tired on car windshield scratch due to wiper.... It worked well almost 90% of the scratches got cleared off but requires a lot of rubbing almost a couple of hours to obtain the result... I might even get 100%, if I tired for additional time.. but got exhausted and visibility that is required for driving obtained... Hence stopped the process. Note: Tried on the Skoda Windshield, surface I tried is almost 70% of the windshield, time required is almost 4 hours plus to remove 90%...of the scratches End of the day, happy with the product. But it requires a lot of physical work to accomplish a good result.

cleaned the glass stains to some extent, but not so happy, don't expect your old glass to look sparkling clean doesn't work as expected, not easy to use to clean stains on glass, if you put more pressure you ll get buff circles.

The product works as promised. The water spots are completely removed and minor scratches are also become less noticeable. However it requires a lot of time and efforts and creates a mess. The drill attachment provided does not work smoothly and requires a budding maching for excellent results. It is difficult to maintain the pressure with drill machine which may cause more damage to your windshield than good by screctching it. Overall a good buy if you have buffing machine.

Don't use on car windshield glass or other glasses,if you don't know what it do to your car.lots of videos on internet.i used by seeing it and damaged my glass.so don't apply to remove scratches on car glass

I think about its purity. Glaze not coming after several application.