3D Eraser Gel Water Spot Remover – Acidic Gel Formula for Hard Water Spots & Mineral Deposits – Safe for Paint, Glass, Chrome, Plastic & Metal - 16 oz

Excellent product. I live in Florida, where lawn sprinkler systems are common. I had started parking in a new spot at my moms, and the hood, front bumper, new/upgrades headlights, and driver side bumper were getting sprayed by one of her sprinklers. Every time I washed my car and hand dried, it looked OK, but as soon as the car dried the hood (especially) looked horrible, clouded, and old. The heat had baked in the hard water (my first time experiencing this).I have a black BMW and everything little thing shows. I thought I would need to have my car stripped or painted, until I researched online and found out about this product. I was a little skeptical and worried that I would damage my car, because fixing significant damage would have been expensive. I watched several online videos demonstrating detailers using this on cars with significant hard-water spots. There are many videos out there that show how to use this properly and quickly, which gave me more confidence in trying this myself, and less fear that I would ruin the paint or the new headlights on my car.Nonetheless, I USED AS DIRECTED (working in small areas, using a back and forth motion (not circular) and spraying a waterless car wash to wipe off the eraser, when the time was up). II kept track of my time with the timer on my mobile phone, too. I was lucky, I only used this product ONCE and it removed all the hard water spots from the paint, new headlights, chrome on the grill, everything. It also only took a small amount to do so many spotted surfaces. I also exerted some pressure when rubbing in the gel, which could might have been why it took me only one time to remove all the spots and white rings.I appreciate that this product was in a gel form, rather than a liquid spray. That gave me more control over how much (and where) I was applying it, and I didn't have to be concerned that I had accidently sprayed an area I didn't intend. I highly recommend using a waterless car wash or spray bottle of filtered water when using this product. I think that using a hose would probably have taken longer, I wouldn’t have been sure if any of the gel had run off onto something else, and I might not have had the great results that I did. I also used a wax/top coat hybrid after the water spots had been removed, and my car looks shiny and new! From start to finish (including waxing my car after using the Eraser), only took about 25-30 minutes of my time.The cost of this product is very low, and I saved spending a ton of money at a detailer, or worst-case scenario (the dealer). Highly recommend and I’m even going to use this product on my mom’s outer sunroom windows that have been look awful, due to being hit by her water sprinklers.

We have really hard water in Utah & I used it on a tiled shower floor that hadn't been cleaned after regular usage, it worked great!!! I also used it on the bottom of the glass shower door & it cleaned that hard water off easily.

No wonder it is not returnable. It absolutely does not remove water spots. Even tried it on my mirror in the shower. Not one spot came off. Of course it did not work at all on my truck.

This product does not work well in getting off calcium stains on my residential home windows or my china sinks, at not when rubbing by hand. Haven't tried a power oscillating tool, but I don't think this is the right product for the job

The product is fantastic! Works without damaging paint. 4 stars because even though it's highly effective, for super extreme water spots, it was capable of removing it and from approx 3 feet away you couldn't tell there were water spots, however when you got up close it was noticeable there was still a slight visible water mark. My car is a year 1989, bathe in the sun while sprinklers went off next to it. Paint on the car is decent, but getting old so that could of have something to do with it and possibly not the product.When using this product, make sure to rinse after using on each spot or you will end up with a sticky residue and can make your paint look kinda funny (Doesn't seem to do damage, but that's something the human eye can't tell).If you are looking for a product that really works on water spots, try this one!

When I'd purchased my new car, the windshield was horrendous (driving the car i dusk when purchasing the car didn't allow me to see this issue). Soap scum and water stains made it difficult to see out of the window, forget about seeing safely when driving towards the sun..... I'd doused the glass in glass cleaner - no luck. I researched so much that I almost gave up and started budgeting for a new windshield to be installed and that is when I found Eraser. This stuff works pretty darn well. I was afraid that it might etch the glass (as it states that it can) so I kept a running hose ready, spread Eraser Gel a cross the glass with 0000 steel wool, let it sit for about 10 seconds, agitated it again with the steel wool and quickly washed it off with the running water. I no longer have the scum and water spots, I can clearly and easily see out of the windshield after two quick and easy applications. I applied this to the windshield and cleaned it off and then immediately washed the car - 1. so the Eraser wasn't on the paint, 2. so the water wasn't spotting on the car and 3. because a clean car looks great! :)Make sure you have a pair of disposable rubber gloves for this application. I believe that it's acidic and you wouldn't want these chemicals on you or soaking into your skin. Also, you use so little per application that you'll be sure that have enough for many other applications.