water repellent for car

Best Windshield Water Repellent

Sometimes, not even the best windshield wipers are effective in bad weather. Splashes from other cars can also make it impossible to see out your windshield. Driving when you can’t see the road is dangerous but there is something you can do to improve windshield visibility. Applying a windshield water repellent will make it easier to see when it’s raining. However, not all products are created the same. Some improve windshield wiper function, while others are designed to repel water.

Finding the right product requires some research. You want a product that is easy to apply like Rain-X Windshield Treatment. If you want the long-lasting durable protection you get from a ceramic coating, Drexler Ceramic Glass Coat will keep your vehicle’s windshield dirt and water-free. Price and overall value are something else you want to consider when your searching for the best windshield water repellent.

We’ve taken a look at 6 products so you can easily choose the best one to use on your car’s windshield.

Best Windshield Water Repellent – Top picks:

PPG Industries Aquapel 88625 Drexler Ceramic Griot’s Garage Rain-X Original Invisible Glass
Capacity 24 Single Use Applicators 1 Single Use Applicator 2.8 oz / 20 ml 8 oz / 236 ml 3.5 oz / 103 ml 22 oz / 648 ml
Suitable for On a car glass On a windshield Windshield, glass rooftop, mirrors, and other glass parts. On a windshield: removes ice, salt, frost, and bug jerky more easily. Windshield Glass Windshield and glass
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You’ll notice that there are differences in each of these products. Some come with budget-friendly prices, while others are more expensive but give you longer coverage. Think about your driving patterns and what you need from a water repellent before you make a final purchasing decision.

Ease and of Use

Even the windshields on compact cars can look overwhelmingly large when it’s time to apply a water repellent. Since the goal is to cover all of the glass, it helps if the product is easy to get on the glass.

Some repellents are applied with a cloth, which can be a hassle. Depending on the vehicle’s size, you’ll probably need a stepladder to reach the top. Sprays are easier and faster to apply and you may not need a ladder.

Easiest to Apply: Rain-X Original Windshield Treatment Glass Water Repellent

Long-Lasting Protecting

You don’t want to find yourself reapplying the water repellent every few weeks or days. Not only is it a pain, but you could also get stuck in a rainstorm only to find the product has worn off. Now you’re dependent on your wipers to keep the windshield clear.

Even though all water repellents coat the glass, some are better than others. Ceramic coatings are durable and last longer, sometimes for a year or more. The durable coating has another benefit, it also protects the glass from cracks and scratches.

Best Long-lasting Protection: Drexler Ceramic Glass Coat

Price and Overall Value

Water repellents for windshields come at a range of price points. You can find expensive products that last for over 12 months, but you’ll also pay more. If you do decide to spend the money, check to see if the product also repels dirt and snow. It should also create a protective barrier that prevents nicks and scratches.

There are less expensive products that protect your glass from the elements, along with acting as a water repellent. Most are easy to apply, though you will have to do it more often than with most higher-priced ones. However, if you’re on a budget and still want to keep your windshield clean, a cheaper product will do the trick.

Best Overall Value: Invisible Glass Premium Glass Cleaner with Rain Repellent

PPG Industries Aquapel Glass Treatments Review

PPG Industries 24 Aquapel TREATMENTS

Aquapel Glass Treatments are easy to apply to a clean, dry windshield. You can also use the packets on mirrors, windows, and sunroofs. Once the liquid is applied, use a clean cloth to evenly coat the glass. Wipe the repellent off once the windshield is completely covered and you won’t have any problems with visibility in the rain.

The product uses fluorinated compounds to bond the liquid to the glass so water beads and rolls off the windshield. With proper coverage, the product will last for several months, but its longevity depends on the conditions when it was applied. Temperature matters, along with humidity. It shouldn’t be used if the temperature is below 50˚F or above 90˚F.


  • Long-lasting
  • Fluorinated compound
  • Easy application
  • Repels snow and rain


  • Glass treatment can only be applied during optimal weather conditions

Aquapel Glass Treatment Review

Aquapel 88625-47100

Manufactured by PPG industries, Aquapel Glass Treatment also uses a fluorinated formula to bond to the vehicle’s windshield. Since it isn’t silicone-based like many combination glass and water-repellent products, it will last longer even through frequent storms and car washes.

The single treatment formula is simple to apply. After covering the glass, wipe the product off with a paper towel or soft towel. Weather can be an issue during application.The liquid won’t seal to the glass if it’s too hot, cold, or humid outside. One application, if done correctly, will last for 6 months or longer.


  • Improves visibility
  • Easy application
  • Affordable
  • Long-lasting


  • The liquid is a little more difficult to apply and can only be done in ideal weather conditions

Drexler Ceramic Glass Coat Review

Drexler Ceramic Glass Coat

Using nanotechnology, Drexel Ceramic Glass Coat is tough, durable, and long-lasting. One application on your windshield can last for over a year. It’s safe to use on all glass surfaces, including mirrors and side windows. You can also use the coating on a glass car roof.

The product is easy to apply. Temperature isn’t a concern, as long as it’s above freezing and below 90˚ F. Once the product’s applied with a clean cloth, you’ll notice a visible shine on the glass. You’ll be able to see clearly out the windshield whether it’s raining or snowing. The coating also makes the glass a breeze to clean.


  • Exceptional durability
  • Easy application
  • Reduces the need for windshield wiper use
  • 100-percent water-repellent


  • The product works best as a kit with both a top and bottom coat applied which does increase the overall price

Griot’s Garage Glass Sealant Review

Griot’s Garage 11033

With its affordable price point and ease of use, Griot’s Garage Glass Sealant is a great option if you want to increase visibility in the rain. One application can last between 3 to 6 months, even if you live in a rainy climate.

The liquid coats the glass surface allowing water to bead. It also makes it easier to keep your windshield clean and free of streaks. Sleet, snow, frost, and ice won’t stick to the glass, and water will roll off without using your windshield wipers.


  • Affordable
  • Long-lasting
  • Easy to apply
  • All-season use


  • While the manufacturer recommends reapplying every 3 to 6 months, consumers have noted that it typically only lasts for a month or so

Rain-X Original Windshield Treatment Glass Water Repellent Review

Rain-X Original Windshield Treatment Glass Water Repellent

It’s a name many drivers are familiar with. Rain X has been manufacturing products for vehicle windshields for years. The company’s water repellent is affordable, and one of the easiest to use. There aren’t any restrictions on when it can be applied, as long as it’s not raining or freezing.

The U.S. manufactured product effectively coats the windshield, almost acting as another windshield wiper. Water instantly beads up when it hits the glass so your visibility isn’t affected. While reapplication is necessary every one or two months, it’s affordable price can make it worth the extra effort.


  • Affordable
  • Easy to use
  • Safe to use on all glass
  • Comes with 2 bottles


  • Due to its relatively short lifespan, it may be inconvenient to use if you don’t have a lot of time

Invisible Glass Rain Repellent Review

Invisible Glass 92184

You get both a glass cleaner and water-repellent with this product from Invisible Glass. It also comes with a budget-friendly price. The spray bottle makes applying the liquid a breeze. You can remove dirt and spots, while also coating the glass with an effective water repellant.

Rain, snow, and sleet are all repelled off of the windshield, thanks to the durable coating. It also helps to prevent frost from forming on the windows. Imagine, no more scrapping off frost and snow on freezing winter mornings.


  • Cleaner and water-repellent
  • Affordable
  • Product guarantee
  • Easy application


  • Even though it is a glass cleaner, it is not recommended for use on interior windows. Its water-repellent properties can leave streaks behind


If you are looking for the best overall value in a water-repellent windshield product, Invisible Glass not only cleans glass, but it also repels water. The product also comes at an affordable price. (>>> Check the current price on Amazon). Rain X Original is the easiest to apply, but Drexel Ceramic Glass Coating will give you the best protection and lasts the longest. Ultimately, it’s up to you to decide which is the best windshield water repellent for your vehicle.