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

This water spot remover works well. I have had issues with some recycle water spots that I could not remove for years. I used this product and just like that they were gone. I wish I had tried this product a lot sooner. Anyway, I only had to use my hands, and the instructions were very clear on how to use the product. I used just the round white applicator sponge and a fiber tower to wipe off. I worked only in t about a one-foot area. Nothing special was needed and just like that the spots were gone, and the paint was clear and no damage to the clear coat. I purchased a polishing machine but did not need it. I thought I should try first with my hands and see what would happen. I was really surprised when the spots that were there for years were gone. I hope this helps.

As stated in the title, this product works great if you understand how it works and use it properly. I was assuming it was a very fine polish and would require some elbow grease to get the water spots off. The first time I tried using it following the directions on the bottle which state "if using by hand use tight circular motions with moderate pressure then wipe off" it didn't work well. It dries very fast during application "time spent in tight circular motions" and is difficult to get off once dry. Attempt number two was much better. I found that it's whats in the product that removes the water spots rather than any work on your part. Just lightly make a pass or two "straight lines" over the area then immediately, and I mean immediately remove with a microfiber towel. If it dries before you wipe off then reapply and it'll come right off. After my experience I wouldn't recommend using a DA polisher with this product. Meguiar's water spot remover did in fact remove all the spots on my black 2500 HD with ease. Followed up with ceramic wax and look great.

I purchased this water spot remover with no much expectation. However, after applying it as described, this product actually works. It takes some elbow grease and time to apply the product, but much less than I expected. As soon as I apply the product and I start rubbing off the product in circular motion with a terry towel, water spots begin to erase. In some parts, it took more that one time, but generally, one pass was enough. 6" x 6" was the largest area I could apply to effectively remove water spots in one pass. Any larger area decreased the product's removal effectiveness and gave me extra work removing the haze left behind. I have to immediately remove the product with another clean towel after applying it. If not , residue will dry up or cake up and then it will be more work to remove it.

I have upgraded my review of this product after trying two other options:1. BioClean2. Meguire's Ultimate CompoundI 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.

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.