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

*Took the picture half way through so you could see the difference and what I started with. I used a very small 1” x 3” piece and toilet water (no cleaner or pre treatment) and took me less than 10 minutes. I learned about using this stuff to clean porcelain from someone who cleans homes professionally. It feels/is very abrasive, yet DOES NOT scratch the porcelain itself. PS I used ONLY this and the toilet water to clean **NO fancy toilet cleaner or pre treatment of any kind** Wish I’d known about this years ago. Will definitely purchase again but won’t need to for a good while, since I used a tiny 1” x 3” strip for the whole toilet and could’ve gotten away with less. UNRELATED (But also amazing..) Use undiluted vinegar with 1oz dawn dish soap in a spray bottle for your shower cleaner. Leave it on for a bit while you do something else and scum comes right off. No scrubbing. Learned this from the same person and it’s fabulous. You’re welcome.

5 star. These are great.

Lightly used with Barkeepers Friend and water, removes hard water stains from porcelain toilet bowl without damage. Quick and easy - just use a small square and wear rubber gloves.

It took two of these to sand my wall in two corners of a room. Pieces of the sponge/sand paper kept falling off in chunks.

After cleaning the toilet very well I put on gloves after I had cut a piece of this sanding screen off to use on the hard water ring left in the clean toilet. I use barkeepers cleanser and a piece of this product and off came of the toilet ring. There is no scratching of the enamel as had happened when a house cleaner did my toilet and scratched the heck out of it after I told her not to use pumice she used it anyway when I wasn’t looking. Guess she forgot. This is a cheap solution to an ugly problem. I don’t need a house cleaner that badly now.

The perfect thing for cleaning hard water stains out of sinks and toilets.

While not as rough as the medium grit version (9090NA) this sanding screen is still not what I would call Fine. Use this with a very light touch and make several passes though, and you can get a finished surface out of it with a little practice (I practiced on a ceiling joint that used to separate two rooms before moving on the more visible wall joints). I still followed up with a 320 grit sanding sponge to soften things out, but that was more like a swipe here and there across the surface. Use the sanding screen with a vacuum of some sort and you have virtually no dust at all.