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Chemical Guys

Chemical Guys Heavy Duty Water Spot Remover Gel for Paint, Glass, and Metal - Mineral and Water Spot Remover for Cars, Trucks, Motorcycles, RVs & More - 16 oz

  • Based on 11,568 reviews
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Availability: In Stock.
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Arrives Monday, May 25
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Size: 16 Fl Oz (Pack of 1)


Features

  • HEAVY DUTY WATER STAIN REMOVER FOR CARS(SPI10816) Trusted by detailers for years, this gel formula targets stubborn mineral stains and water spots on paint, glass, and metal surfaces
  • SAFE AND EFFECTIVE FORMULA This car water spot remover is designed to remove tough water marks without damaging clear coat, polished metal, or glass, making it safe for regular detailing use
  • VERSATILE SURFACE APPLICATION A hard water stain remover that works on painted panels, chrome trim, aluminum, stainless steel, and exterior glass for a complete water spot removal solution; a great addition to you car detailing kit
  • EASY TO USE GEL Thick formula of this Chemical Guys water spot remover clings to vertical surfaces for longer working time; simply apply, rub gently, and rinse or wipe away for a clean, spot-free finish
  • PREPARES SURFACES FOR PROTECTION Chemical Guys hard water spot remover removes grime and light debris that can block waxes or sealants from bonding properly, ensuring better protection and longer-lasting shine
  • BEYOND AUTOMOTIVE USES Ideal for boats, RVs, and household glass or metal surfaces; this hard water stain remover for glass safely removes mineral deposits and spots from a variety of finishes

Description

Hard water spots and mineral deposits are among the most stubborn challenges in detailing - left untreated, they etch into surfaces and become increasingly difficult to remove. Heavy Duty Water Spot Remover is a professional-grade gel engineered to dissolve calcium buildup, mineral staining, and water marks from paint, glass, chrome, and metal without scratching or damaging delicate finishes.The thick gel formula clings to vertical panels and glass for extended dwell time, giving the active ingredients time to break down deposits at the surface level. Apply a thin, even layer to a microfiber applicator pad, work into the affected area using light circular pressure, and allow 30-60 seconds of dwell time before wiping clean. For heavily etched or long-standing mineral buildup, two to three applications may be needed to fully lift deposits - this is normal for severe staining and not an indication of product failure.Safe on clear coat, polished metals, chrome trim, aluminum, stainless steel, and exterior glass. Works on cars, trucks, motorcycles, RVs, boats, and a wide range of hard surfaces wherever mineral deposits and water staining occur.After treatment, surfaces are clean, smooth, and properly prepped for waxes, sealants, or ceramic coatings. Mineral deposits left on paint can block protective products from bonding correctly - removing them first ensures better adhesion and longer-lasting protection. Follow up with Chemical Guys Butter Wet Wax or a ceramic spray coating for a complete finish.Questions about application or results? Our detailing specialists are available at .

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 8.27 x 1.81 x 1.81 inches; 1.1 Pounds


Item model number ‏ : ‎ SPI10816SW


Department ‏ : ‎ Adults


Date First Available ‏ : ‎ November 14, 2016


Manufacturer ‏ : ‎ Chemical Guys


Best Sellers Rank: #47 in Automotive (See Top 100 in Automotive) #2 in Cleaners


#2 in Cleaners:


Customer Reviews: 4.2 4.2 out of 5 stars (11,854)


Item Form: Gel


Scent: Unscented


Specific Uses For Product: Paintwork, Metal, Stainless Steel, Aluminum


Surface Recommendation: Glass, Metal


Special Features: Removes Water Spots


Special Ingredients: Acid


Contains Liquid Contents?: Yes


Cleaning Agent Formulation: Hard Surface Cleaner


Product Benefits: Removes Water Spots


Item Volume: 16 Fluid Ounces


Unit Count: 16 Fluid Ounces


Number of Items: 1


Item Weight: 499 Grams


Size: 16 Fl Oz (Pack of 1)


Brand Name: Chemical Guys


Global Trade Identification Number: 68, 69


Manufacturer: Chemical Guys


UPC: 816276011868


Model Number: SPI10816SW


Part Number: SPI10816SW


Item Type Name: Heavy Duty Water Spot Remover (16 oz)


Included Components: Product


Material Features: Unscented


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 25

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Absolute sledgehammer for water spots—actually works
Size: 16 Fl Oz (Pack of 1)
This water spot remover is on another level. I’ve tried at least 10 different products that promised to remove hard water spots, but most barely made a difference. This one actually delivers. It cuts through stubborn mineral deposits with ease—on paint, glass, and even metal. I mainly use it on shower doors, and it’s hands down the most effective product I’ve found. It removes buildup that other cleaners couldn’t touch. The gel formula helps it stay in place, so it has time to work instead of just running off. You don’t need much, and results are noticeable almost immediately. Pros: -Extremely effective on tough water spots -Works on multiple surfaces (paint, glass, metal) -Gel formula stays in place -Delivers where others fail -Little effort Cons: -Strong formula—use carefully and follow directions -May require effort for best results Overall: A true heavy-duty solution that lives up to the hype. If other water spot removers haven’t worked for you, this one probably will. ... show more
Reviewed in the United States on April 17, 2026 by JustAShopper
    • Amazing Results in Seconds — Even on Tough Stains!
Size: 16 Fl Oz (Pack of 1)
I originally picked up this product to tackle some stubborn water spots on our shower glass—something my wife has been frustrated with for a long time. I wasn’t expecting miracles, but honestly, this stuff delivered beyond expectations. Within seconds of applying it, the water marks that had been stuck there for ages started disappearing. No heavy scrubbing, no complicated process—just quick, noticeable results. The glass looks crystal clear now, like it’s brand new again. What really impressed me was how versatile it is. On a whim, I tried it on our doggie door flaps, which had years of caked-on dirt and grime. I figured it might help a little—but it completely transformed them. It cut through all that buildup effortlessly and made them look significantly cleaner. Pros: • Works incredibly fast • Removes tough water spots with ease • Very little effort required • Versatile for different surfaces Cons: • None so far For the price and performance, this is absolutely worth it. If you’ve got stubborn stains or buildup that won’t budge, this product is a game changer. I’d definitely recommend it to anyone dealing with similar issues. ... show more
Reviewed in the United States on April 13, 2026 by AMZ Shopper
    • Great product
Size: 16 Fl Oz (Pack of 1)
I’m so happy I found this product! When my daughter moved home from college I could no longer park in the garage. The water sprinklers would spray my car when it was in the driveway and after a few years I had hard water stains all over my entire car. I tried vinegar and other products that didn’t work. I decided to try this stuff and test it out on the windows and windshield first. Oh my gosh what a difference. I was afraid to leave it on too long so the first time I rubbed it off too soon and had to do it again. But after it worked so great on the windows I decided to try it out on the paint. It literally made my car look liked it had been waxed and polished! I wouldn’t use it on pin strips maybe. It looked like it rubbed mine off in an area but maybe it was like that and I didn’t notice beforehand. Tips: make sure it’s a nice cool day and your car is clean. I rubbed it with a cloth and left it for a few minutes and then rubbed it away. Followed by rinsing the area well. I got excited and also did my faucets in my guest bathrooms and it took the hard water spots off. The faucets look shiny and new! ... show more
Reviewed in the United States on April 21, 2026 by Megan
    • Impressed with this product!!! A life saver.
Size: 16 Fl Oz (Pack of 1)
Review Image by Melissa Romero
Review Image by Melissa Romero
I am so extremely impressed by this product that I had to come review this as soon as I finished cleaning the glass doors in my shower! Absolutely blown away by how great this product works. It instantly breaks down the water stains and leaves the glass clear as new. I always put off cleaning the doors because nothing seems to work so this was a big job to take on today with water stains that have developed over several weeks. I tried a small area at first and let it sit for a few seconds before rubbing the product in. Once I noticed that it worked, I continued with the rest of the doors. There is no strong scent to the product and safe to use (I wore gloves anyways). As stated on the label, I put the gel on a small towel and continued doing so until it was time to clean it up with water. Love this product, it has made my life easier! See the before and after photos for proof. ... show more
Reviewed in the United States on April 19, 2026 by Melissa Romero
    • Don't Waste Your Money on other products. This one does it and does it right!
Size: 16 Fl Oz (Pack of 1)
This is a really solid product. My 20 year old truck had some really nasty water spots on the glass, that other water spot removers were unable to get rid of completely. This did a fantastic job on the first pass. Don't waste your time or money with other products. The ONLY reason it didn't get 5 stars was because it does leave some very hard water spots behind, but they are difficult to see unless the light hits them just right. My guess is they are etched in and would require more aggressive buffing to remove. Best money spent on a product like this yet. ... show more
Reviewed in the United States on February 22, 2026 by Tom Postma
    • Not great- average with hard water spots
Size: 16 Fl Oz (Pack of 1)
Not super effective as they said on hard water spots. I used on my shower door and it’s comparable with any other shower cleaner for hard water. Will def need elbow grease. Not great after cleaning 2x. Maybe it will be great after a full bottles worth
Reviewed in the United States on April 12, 2026 by Annie Baeten
    • Incredible water spot remover!!!
Size: 16 Fl Oz (Pack of 1)
Review Image by Jessica Jackson
This water spot remover works amazing! I used it on shower glass and the difference was immediate. It removed hard water stains that I thought were permanent with very little effort. A little goes a long way, and it leaves everything looking crystal clear. Definitely a must-have if you’re dealing with stubborn water spots! ... show more
Reviewed in the United States on April 19, 2026 by Jessica Jackson
    • Works very well, but its a little bit pricey.
Size: 16 Fl Oz (Pack of 1)
Review Image by Abdul H.
Bought this 3 years ago to remove the water marks on my car windows, I totally forgot it was there and been trying to clean them again but nothing worked until I found my car cleaning bucket and this was in it. Absolutely amazing results.
Reviewed in the United States on April 12, 2026 by Abdul H.

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