Review on AUSTOR Sandpaper Assortment Automotive Furniture by Chris Quinto

Our new house has very hard water and the glass in the shower is so coated with limescale it's hard to see through. I tried CLR for a few hours with little to no effect. I ordered this material, used 3000 grit and it came right away. Took me a few hours to sand all the tiles but now they look brand new. Be sure to dip the paper in water and rinse the glass while sanding to avoid scratching. I also mixed some dish soap into the spray bottle I used to wash the glass and it made the sanding a lot easier and didn't leave hard water stains.