I have a black (stone) Moen sink. The finish has a white powdery looking scum all over it no matter what I do to clean it. I've used a Magic Eraser repeatedly to clean it. This does a good job temporarily, but then the white powdery look comes back. Please help!
The white powdery film/spots are simply dried water spot residue that builds up and is going to come back (because it's a black sink) unless you wipe the sink out with a dry cloth on a regular basis. Been there, done that and that's why I like stainless steel now. ;-) LOL!
I would try a Mr. Clean eraser. I use one on my stainless steel sink and it really shines it up. I wash my sink with dish washing liquid, and then rub the Mr. Clean eraser over the sink. It shines it great like you can't believe! (05/11/2010)
Hi Nancy - a fellow Longview-ite here! Every few days I clean my sink with general all purpose cleaner (Bar Keeper's Friend, Softscrub, or even just Dawn dishsoap, etc.) but then afterward, dry all the water out and then wipe it down with any of the following: STP Vinyl Protectant, Armor All, WD40, or baby oil. They all work great and keep it shining for several days. It's also a good habit to get into to wipe the water out of the sink after each use (I'm a Flylady fan!). This keeps the shine going for many more days than if you don't. Good luck! (05/11/2010)