Chemical GuysHeavy Duty Water Spot Remover - Stain Removing Gel for Paint, Glass & Metal - Safe for Cars, Trucks, Motorcycles & More, 16 fl oz

This is the best stuff you will ever buy to remove hard water spots. It will clean glass spotless. I clean my whole car with it every couple of months and it shines like new. It takes the place of clay bar It removes all contaminates from paint I remove it with very warm water and car soap. Regular washing will not remove residue it takes hot water or clay bar lube.

I had a professional detailer that could not get the hard water stains from our sprinklers off of my Mercedes.He did the full wash, wax, clay bar, everything and could not remove the spots.After reading the reviews on this product I decided to take the chance and purchase two bottles.I received the bottles within a couple days along with their finishing wax and applicators and tested on a small spot and did not see any issues on the pain so I decided to do the whole side that had the water spots.Following the instructions exactly I was amazed to find that it eliminated the water spots almost immediately, some areas took additional work but after another pass it cleared out all of the hard water spots.I only used maybe an eighth of one bottle and it took care of the whole side of my car so I let my detail or know about the product so he could use it for reference in the future.I didn't tape off a before and after section but I did take some pictures below that will show you the treated spot and the untreated spot and the final product so you can see the difference.It was as easy as waxing and buffing.Great product highly recommended.

I was honestly skeptical at first, but Chemical Guys Water Spot Remover completely blew me away. I had stubborn water spots etched into my paint and windows that just wouldn’t come off, no matter how many washes or clay bars I used. One application of this product, and the difference was immediate.It’s super easy to use—just apply with a microfiber towel, let it sit briefly, then wipe off. The spots were lifted without damaging the clear coat or leaving behind streaks. I used it on my paint, glass, and chrome with excellent results all around.If you're dealing with hard water spots or mineral buildup, this product is a must-have. It saved me from having to polish or even repaint. Definitely a 5-star product from Chemical Guys!

Works on not so old water spots but the much older ones it did not work at all, unless it needs a lot of elbow grease.

I love Chemical Guys products. I'm accustomed to their quality and consistency of effectiveness. I own their Pink wash and their wheel cleaner products and used the wheel cleaner to help break down some rust and brake pad residue that built up on a rim. That's a tough ask and while I didn't clean it 100% Chemical Guys product actually broke down about 75% of the grime and dust that was caked onto the rim. It also might be that I didn't put enough effort and elbow grease into totally cleaning it. All that as mere prelude...I love cleaning my truck. It's a black F150 and I enjoy washing it myself - especially on sunny days. I don't like paying $12 every time I take my truck to a car wash to get it "the works" and I'm not close enough to a franchise that has a monthly subscription that would let me wash my truck without having to do it myself. So here we are. The hose I use has some mineral-rich water. Even here in the Pacific Northwest, where our water is rather drinkable from the faucet/hose attachment, there's still enough iron and mineral density to eventually leave water spots on your vehicle. I finally put a filter on it but the water spots were definitely there and I couldn't get them off with using detailer or a standard, filtered rinse and wash. Finally, I came across another Chemical Guys product and after watching the proper way to use it, I immediately purchased and tried it myself. I'm still cleaning off the gel fully with a microfiber cloth (also a CG product) my black F150 looks much sharper and more glossy than ever before!I don't have a great before/after picture but I would clean my truck before and, after it dried, I'd see those pesky water circles - especially on my hood where water is more likely to stand after a wash. The sides were mostly okay but I had some slight rigidity to the paint coat because of the stuff hitting it on the road over time - that also seems to come off. I didn't have to work hard - just apply more than a trace of this stuff and work a single section (one door or half a tailgate...whatever works). Make sure you have a somewhat clean outside already - don't do this with some mud on or it hurts the effectiveness of the product.Anyways, it took me maybe 10 minutes to get the whole truck and the top windows applied and I came back 10 minutes later, wiped it all down and it was clean. Awesome product! Worth the $17 investment and it can cover multiple attempts from a single bottle. Do NOT dilute this - it's a direct application product, not a "mix with water" product.

Very good product.

I recently purchased a used 2013 F-150 and the water spots on the roof and sunroof area are horrific. It looks like whoever owned the truck before me never bothered to ever wash that part of the truck. I purchased this product with the hope that it would clean up the water spots and make my sunroof enjoyable to look through again.It didn't really work like I'd hoped.The area is better. There's no doubt about that, but the water spots are clearly still visible. I attempted several applications over the course of an hour or so directly after I washed the truck by hand. I followed the directions, and when that didn't really work, I tried putting a whole lot of this stuff on (mostly on the glass so I wouldn't sacrifice my paint) and let it sit for between 10-15 minutes. This was done pre-dawn so the sun wouldn't dry it up. Even after sitting for that long, copius amounts of elbow grease still wouldn't clean up the worst of the spots.I'm guessing the water spots I have will probably need to be buffed out since they're very bad and have been on the vehicle for a long time... maybe years. Still, this product advertises that it's 'Heavy Duty' and removes 'stubborn water spots' 'instantly'. In my case, that certainly isn't true. I'm giving three stars since it did make the area look better. Quite a lot better, actually. Still, the worst of the spots are still there and clearly visible. No amount of this product would remove them.