Meguiar's Water Spot Remover, Heavy Duty Water Spot Remover for Cars, Remove Water Stains and Polish Glossy Paint with a Versatile Clear Coat Safe Formula, 16 oz

I have upgraded my review of this product after trying two other options: 1. BioClean 2. Meguire's Ultimate Compound I knew BioClean would be too harsh and it is. For removing water spots, it actually works very well in conjunction with Meguire's Ultimate Compound except for one major problem: it is very abrasive and damaging to plastic or paint, even the acrylic urethane finish on cars. The instructions say not to use on shiny car paint and that is an understatement. It will create fine swirl marks on paint and will haze plastic components like bumpers and sideskirts. BioClean is mean't to be used on glass or household applications like shower rooms. Obviously, what would you prefer: no water spots, or swirl marks on your pristine car finish??? The swirl marks are not as bad as waxing a dirty car, but you can still see it if you look closely. I knew the Ultimate Compound from Meguire's would be a stop down from their Water Spot Remover product since it is basically a compound and it is. It has finer grit in it and is not as effective at removing water spots. Works very well though, if you apply it after BioClean. I found the Meguire's Compound Water Spot Remover will not completely remove stubborn water spots, but at least it won't damage automotive finishes. It also buffs out to a nice waxy shine, much better than the Ultimate Compound. What I do now is apply this product a couple of times. Each time it removes more and more of the water spots. I call it a day after that, knowing any other options may damage the finish on the car, or be less effective. Because this product is a compound, it does remove some paint since my car is Race Red and it leaves the white terry cloth I am using pink in areas if I rub too hard. I then finish up with my wax of choice: 3M Performance Finish. I mainly needed to remove bad waterspotting under the hood and trunk lid, on top the fenders inside the engine compartment and the drainage trough underneath the trunk lid. I had the car in storage and the storage company washed the car a couple of times, but did not wipe off water spots in those areas. This product will remove spots fairly well on areas that were waxed, but on unwaxed areas, the spots still won't come off completely even with multiple applications and hard rubbing. Fortunately, I don't have to use this product on the outside top coat since the storage company dried that out OK after a wash so there are no water spots. BTW, if you want to remove water spots on flat glass, it's easy. Just use a sharp razor blade, works like a charm! Turns all those deposits to white dust. Just blow it off the glass or clean it up with window cleaner. **Wink** Won't work on paint though, as the razor blade might dig in and scrape the paint.

This product removed hard water stains and calcium deposits on my vehicle without any damage to the clear coat. I highly recommend this product. It’s amazing. It’s a small-ish bottle but I was able to do my entire sedan. 10/10

I had hard water spots all over from getting hit with a daily sprinkler. My car was parked in the same spot for just under a month and sitting in the hot sun so the spots were pretty well baked on. This spot remover ultimately worked, but it wasn't easy. It took several applications on a few different days until I could finally remove all the visible spots, and that was with heavy scrubbing using various microfiber cloths. At first I was using a wet cloth to prep the vehicle and wipe away the product but I found out that it actually seems to work better without any water, when the car is completely dry. I had the best result when I applied the product directly on a dry surface and scrubbed continuously, then used another dry cloth to wipe it away when I was finished. Thankfully it did work in the end but I did not anticipate it being as difficult as it was to remove relatively fresh spots so I'll give this 4/5 stars for ease of use. Thankful my paint isn't damaged though!

Once upon a time I tried a number of different products and home remedies that you read about, in the pursuit of removing water spots from car windows. Nothing made a dent, let alone removed spots completely. I cannot speak to this products performance on paint, as I have not yet had the opportunity to use it on paint. I just finished removing the water spots from my Wrangler's windows (hard top) however, the optimal word in that sentence being removing, because they are gone- not faded or mostly gone, but gone. Now, I have had the Jeep for about twelve years, and for all but the first week that I had it, it had water spots on the windows. I gave up on removing them a short time after they first appeared. Fast forward a dozen years and many harsh off-road miles later and I went about cleaning restoring the paint with a rubbing compound, repainted some trim, and once everything was nice looking again the water spots really stood out. There is not one spot remaining after going over the windows with this product- not even around the edges where you would expect to have difficulty. Now I will say that to do this, I used a drill fitted with a three inch buffing pad, and spent about half an hour on each window, going over small sections a couple times. Now, my windows were more water spots than not when I began. You might not have to spend that much time on yours. I did try to do a section by hand to see how difficult it would be without a machine, and I highly recommend a drill pad and attachment. I bought one on Amazon with ten pads for like $15. Oh, and make sure to let your drill cool a minute for every few minutes you go at it- drills were not meant to run continuously.

Meguiar's Water Spot Remover is a decent product that delivers mixed results. I bought this to help remove water spots from my car’s exterior, and while it did work to some extent, it didn’t completely meet my expectations. The application process is straightforward. The product is easy to apply with a microfiber cloth, and it doesn’t leave behind any residue. It worked well on light water spots, particularly on the glass and paint surfaces, giving them a nice, clean shine. However, when it came to more stubborn or older water spots, the remover struggled. Even after multiple applications and a bit of elbow grease, the toughest spots remained visible. I also noticed that on darker paint, it sometimes left a slight haze that needed additional polishing to remove. Overall, Meguiar’s Water Spot Remover is an okay product for maintaining a clean look and addressing minor spots, but it may not be strong enough for more severe water stains. It’s worth a try if your water spots are relatively fresh, but for heavy-duty cleaning, you might need something a bit more powerful.

This product is excellent. It does take more elbow and effort than a regular wax but the effort is worth it (break it up the work as I di hood/front and back first). Anyway, WOW, like new, no spots! I have a black 2024 Nissan but it had water spots even though my car is still new, this was as if I just drove off the lot, so clean and shiny! And the best thing is, it has lasted for weeks and between washings. Im very impressed! I recommened!

I drove a brand new black SUV on a week long back mountain road trip. Every day I rinsed the accumulated road dust off with with spring water from the cabin where we stayed. What I didd’t realize was the thousands of mineralized water rings I was layering on the paint. When I returned from my trip none of my usual car care products did anything to get rid of the rings. Frustrated, I bought the 2 highest rated water spot removal products on Amazon. One of those being Meguiar’s Water Spot Remover. I tested both by using one on half of the hood and the other on the second half. The Meguiar’s was clearly outperforming the other product but, was not perfect on the first try. I ditched “Brand X” and, continued with the Meguiar’s. What I learned by the time I finish the WHOLE vehicle was I was not using the Meguiar’s correctly in the beginning. It’s not meant to be used in the same way as Meguiar’s Clear Coat Safe Polishing Compound. Even though the bottles look the same. With my car out of the sun. I took a microfiber towel and folded it into an appropriately 5” square. Using that square as the applicator and, only working on one section at a time. I applied an EVEN AND COMPLETE COAT of water spot remover to that panel. Not too much, not too little. It is the reaction of the liquid sitting on the surface that is removing the rings more than the buffing action. I let the Meguiar’s stay put for a little over a minute before removing it with a clean microfiber cloth in the same way you would buff wax off a car. No need for an orbital buffer. There were a couple of places that I needed to apply a second coat but not many. Keep in mind that my vehicle was completely covered with hard water spots. I used this product on color painted panels and windows only. I was scared to use it on anodized metal and more delicate plastic trim pieces. I am ecstatic about product. My SUV looks like brand new again. Note to Meguiar’s: Do you think after decades of using the same crappy bottle for your products that you might consider a redesign? Setting these bottles down while using them is kind of like trying to balance an egg on its end. The rounded and not always flat bottom end is not conducive to the bottle staying upright. On the other end of the bottle is the worst applicator cap in the world that is always guaranteed to clog-up once the bottle goes back to shelf. No stars deducted though because your products are always awesome.

My black Nissan Pathfinder had a lot of waterspots, thanks to my neighbor's lawn sprinkler. I decided to do it cheap, using vinegar, then glass cleaner...basically stuff that I already have. Nothing happened. Saw this and decided to try. And since I was also lazy to use some old fashioned elbow grease, I also bought some foam attachments to my drill. Wow, in 1-2 passes,, the spots on the windows were gone. The body is different. One thing I noticed is that the older the waterspots get, the harder they are to remove. One side of my vehicle got the waterspots about a week before I worked on them and I only needed 1 or 2 passes. The other side which is worst and was longer (about a month or more) took probably 3-5 passes before they become unnoticeable. It will not totally remove all of it and you can still see some of the spots if you really are looking at the right spots, otherwise, they were almost invisible and I am happy about it. Do not let it it dry on you like what the instruction, because it turns into chalk-like powder. Just apply little by little, maybe just the size of a dime should cover about 5x5. One thing I did was when it dried up, I sprayed glass cleaner to keep it moist. I also used the same glass cleaner to wipe it off, then use a dry terry cloth to fully wipe everything off. You also might want to wash your car first. I still used some powerful elbow grease on the spots I cant use my power drill at. But, over-all, very satisfied. I took pictures of the an area I already did, still doing and havent touched yet just to compare. Now, all I need to do is talk to my neighbor that I do not need their sprinkler to water my car...