3M Fine 9089NA Drywall Sanding Screen, 4 3/16in x 11 1/4 in, 2-Sheet Grit, 2 Count

Read a cleaning tip to use this stuff to remove hard water marks on toilet bowl. The drywall sanding screen works like a charm for this purpose. Removed the water makes with a few light scrubs. Just take care to press only lightly or you may damage the porcelain finish.

I use the fine grit for sanding calluses on my feet. Works great.

I use this and Liquid Bar Keepers Friend to clean hard water stains off my toilet bowl.

I tried using this to smooth out some old solder on a copper pipe before connecting a SharkBite fitting. I couldn’t solder on a new pipe because there was a slight leak keeping the pipe wet. The emery cloth worked fine until it got wet. The water almost instantly dissolved the grit down to the cloth so that it became useless. I ended up using some regular sandpaper sheets that worked much better.

I used this to finish the process of converting a popcorn ceiling to a flat ceiling. After scraping the popcorn off and using a sanding screen with more grit to get as close to drywall as possible, I applied a thin coat of joint compound over the whole ceiling and used this sanding screen to make it smooth. It worked well in combination with the Hyde Tools 09165 Dust-Free Drywall Vacuum Hand Sander with 6-Foot Hose I also purchased at Amazon connected to a shop vac with a HEPA filter. It wasnt easy and it wasnt fast, but it wasnt as messy as when Ive done it without these and the finished product looks like it was always a flat ceiling. Pros: Good finished product once I figured out how much pressure to apply. Cons: The 15 x 15 ceiling required both screens (both sides). That might be about right, but I expected the screens to hold up a little longer than that. I was having to apply a bit more pressure than I would have liked by the end. To be fair, that could be unrealistic expectations on my part having never used this product before.

I tried everything! For almost 5 years after buying my home, I have tried everything ever recommended to remove the terribly unsightly hard water ring in my 2 toilets. From Comet/Ajax & elbow grease, pumice stones, BarKeepers Friend (recommended by my plumber) and even fine grit sanding paper, nothing removed that stain. Until today! Somewhere it was recommended to use BarKeepers Friend in a paste and working in small circles use the 3M Fine Sanding Screen. I figured I had nothing to lose but the money spent for the product. IT WORKS!!! Yes, it requires some extra elbow grease and small circles aren’t always easy to do at certain angles, but you will get rid of that hard water stain! (FWIW, I found that circles really were the most effective motion.) Money well spent!

I saw a video where someone used these to buff out hard water stains on their shower and toilet. I just moved into a house with hard water stains in both toilets. It worked on one toilet, but not the other. I guess it depends on how bad the stain is.

Easy to hold and use. Works great!

Ive been battling some hard water stains in my toilet, and have tried a variety of online recommendations ranging from vinegar to Borax, with only minor improvement. I then tried the suggestion of drywall sanding screen and Bar Keepers Friend. It really works, and doesnt scratch the porcelain. Maybe not the intended use for this product, but it worked wonders!

I read a random article on the internet that said to use fine drywall sanding screens and Barkeepers Friend for hard water stains in the toilet. I am living in a 30yo rental with original fixtures with these stains in every toilet and sink/tub drain. I figured for $5 why not try it since everything else I had tried did nothing. I cut it in 1 strips and tried it with just water to see if it would scratch the porcelain. It did not, and the stains came off in minutes. I didnt even need the Barkeepers Friend. The next time I use it I will wear gloves though, because it does slowly disintegrate when you use it in water and the particles are tiny and could possibly irritate or maybe get into your skin. I have attached a photo of a tub drain and a toilet where the right side has been cleaned with the screen, and the left side was not so you can see the difference.