I have corian countertops and kitchen sink built in one. It has multiple stains from the previous owner i've been trying to get rid of. I read all the great reviews thinking this product would finally work. But i was just as disappointed as the rest i've tried. Didn't do a thing..

Meh. It's OK. I don't like the smell at all and it lingers. It does make water bead in my SS sink as claimed - but the beads make the sink look messy. I prefer cleaning with Barkeepers Friend or plain steel wool and polishing with lemon or orange oil. Would not repurchase.

Holy cow, people! This stuff must be made of magical unicorn tears or something. I just got my order only about 30 minutes ago and decided to give it a try on the brown/ yellow stain on my Swanstone (like Corian) bathroom sink. Stain - gone. Then I went at the grody-ness of my stainless kitchen sink. Looks pretty stainless right now, for the first time since I moved in. It even cleaned up the black crud in the lettering around the disposal hole. And the black crud lining the disposal hole. AND the green crud on the faucet lever.

It leaves a bit of a white cast if you don't wipe/ rinse it well, but SO!!!!!!!!!!!!!!

Quick and easy cleaner for my stainless sink. I was curious to see what else it could do. Beats Gel-Gloss hands down for cultured marble bath surround! I tested a small spot to make sure it did not scratch.Using a damp sponge and MINIMAL effort, the surface is like new. Previously, I would "pre clean" with acidic cleaner and then use a power auto buffer and gel gloss to get rid of the water spots and residue.What a project!
My brushed stainless pop-up in the bathroom sink was so bad I tried Comet cleanser, then steel wool, to no effect. I planned to just go buy a new one. Hope's perfect sink took the crud right off. I don't know what's in this stuff but I just bought a case of it. It really works.

Is your water hard enough that it leaves ghostly white rings when water dries in your stainless-steel sink? Ours is, and this polishing cleaner has been improving the condition of our kitchen sink with each use.

The first time I used this, I began by scouring with Barkeeper's Friend and rinsing thoroughly. I then used about a tablespoon of this cleaner to each of the bowls of my sink, applying using a half-sheet of paper towel in a swirling motion, then rinsing and drying as the instructions advise. Afterward, most of the water spots were either gone or greatly reduced. I repeated these steps and got even better results, and my paper towel had signs of removed tarnish. The sink bowls felt slicker and smoother, and water droplets beaded up.

I repeated the process every few days and after a month am able to space out the applications to once or twice a week if I'd like. The last of the discolorations is gone, and the finish of my sink is back to the even, bright, "brushed" look it had when we installed it a few years ago.

Note that this cleaner is on the runny side. Instead of peeling off the inner seal, you may be happier just making a small hole in it with a poultry lacer or chopstick tip. This will allow the product out, but will make the flow slower.

For background, I have used several other products on my sink before trying this, and each one had drawbacks. Barkeeper's Friend worked well on deposits and discolorations, but is more abrasive than I am comfortable with for daily use. It also leaves grit behind that takes a lot of water to rinse away. Kuhn Rikon is pretty effective but requires a lot of elbow grease and is pricey. Sheila Shine and Wenol both give some protection/coating to the metal, but Sheila Shine is not for food surfaces and actually left the sink too slick and did not remove the worst markings. Wenol also requires a lot of elbow grease and seemed more effective as a protectant than as a cleaner (it remains my first choice for faucet hardware in the kitchen and bath).