Chemical Guys SPI1081602 Heavy Duty Water Spot Remover, Safe for Cars, Trucks, Motorcycles, RVs, Home, Office & More, (2 Pack) 16 fl oz

Amazing product!! I have used CLR, Lime a Way and have never had results like this. I decided to either try this product or buy new shower dispenser bottles. I wasn’t going to spend hours with CLR and brushes and only get partial success; and CLR removed none of the water spots on the bottles. I used a flat craft paint brush and brushed on a thin coat of this HD Remover and let sit for a while. I did need to do a 2nd coat on the heavy buildup on the ridged caps and used a cleaning brush to break loose a few spots. Well worth the $$ and will be using continually now!

This stuff works great. Got rid of stubborn water spots on my windows and paint fast. Just follow the directions and rinse well after. Strong formula—definitely worth it!

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.

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.

If you follow the directions, Word for Word. This stuff works awesome.

Removes hard water spot. I have a 2016 SUV and I was afraid the prior owner neglected the SUV so there were water stains on the chrome finish around the windows as well as the upper panoramic glass roof. The product removed them all and it was easy to do so. I was skeptical at first but I highly recommend after using it.

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.

I would give this a five but if you just follow the directions it would take forever to work if at all. I used 0000 steel wool with the product and it worked really well.