The 3 Best Windshield Water Repellents (2022)

Using the best windshield water repellent is necessary when the weather is terrible. It can make the water bead and shed off. So your visibility will be more transparent, and your drive will be safer amidst snow, fog, and rainstorms on the road.

However, not all windshield water repellent products are the same. Some are great; some make your glass dull.

Choosing the right product can help you feel comfortable while driving.

I have used the three below products, and I want to recommend them to you.

Read to know more about them.

What Is A Windshield Water Repellent?

A windshield water repellent is a chemical coating applied to the car windshield to create a hydrophobic feature. When you drive in rainy or snowy weather, this feature will help to repel water, bead up and push water off the surface.

Benefits of Using a Windshield Water Repellent

  • Increase the visibility
  • More safety
  • A lesser water spot on the glass
  • Remove tar, bug easier

Best Water Repellent For Windshield (Quick Comparison Chart)

 LongevityStrong smellRating
Rain-X Original Water Repellent

8-10 weeksNo9.9/10
Gtechniq – G1
> 1 yearNo9.8/10
Invisible Glass Rain Repellent
2-3 weeksYes9.7/10

3 Best Car Windshield Water Repellent (Detailed Review)

1. Rain X Water Repellent

This is the best water repellent for windshields.

Rain X Original Windshield Treatment

I have used Rain X for 20 years, and I see that” the heavier the rain, the better it works.” The water beads into tiny bubbles and rolls off my windshield with no need to use wipers.

Rain X Original Windshield Treatment can easily remove dirt, bugs, and grimes with less cleaning effort. Besides, it also doesn’t leave any streak or residue.

It can last 8-10 weeks.

One more thing I like about Rain X is its smell not too strong.

However, I think some people may struggle to apply if they don’t follow the instructions carefully.

Overall, Rain X Original Windshield Treatment is the best windshield water repellent I would like to recommend on my list. I rate it 9.9/10.

You can buy it below:

Rain-X Original  review-best rain repellent for windshields

Rain-X Original Windshield Treatment Glass Water Repellent


  • Affordable
  • Wards off bugs, dirt, and debris
  • It can be used on other glass surfaces
  • Water beading technology
  • Easy application process


  • Needs frequent reapplication

2. Gtechniq – G1 Water Repellent Windshield

This is the best hydrophobic windshield coating.

Gtechniq – G1 is my second recommendation. It has serious water-repelling properties. But you have to pay a little more than other options.

My first impression when using Gtechniq – G1 is clear without the swirls or distortion. It beads water perfectly.

I applied three layers, and it is the longest-lasting product ever, over one year.

It’s also easy to apply; no need for wipers.

Just one thing I don’ like is my wiper blades squeak when the glass is dry.

But over, I highly recommend Gtechniq – G1 for use in heavy rain. I rate it 9.8/10.

Buy it below:

Gtechniq - G1- windshield rain repellent

Gtechniq – G1 ClearVision Smart Glass


  • It lasts up to two years
  • Nanotechnology-based
  • Repels water, dust, and mud
  • It comes as a two-bottle solution


  • Application is lengthy

How To Use Gtechniq-1?

Applying Gtechniq – G1 is not complicated. But it’s a bit tasking. This product needs to be applied in temperatures between 41-86 degrees Fahrenheit. It should not be under direct sunlight.

Step 1: You will need a pair of nitrile or latex gloves to protect your hands.

Step 2: Use a good glass cleaner like the G6 to remove any oil or dust- any debris will prevent proper bonding of the coating to the glass.

Step 3: Remove contaminants with the G4 glass nano polish.

Step 4: Clean the glass one more time with the glass cleaner.

Step 5: Now, use the application pad to wipe G1 on the glass surface.

Step 6: Apply three coatings five minutes apart.

Step 7: Wait for the coating to cure.

Step 8: After curing, apply the G2 residue remover and buff off the residue using a cotton cloth.

Step 9: Finally, clean your wiper blades thoroughly to prevent surface judder, which will affect G1’s performance.

Gtechniq – G1 works like a charm. No matter the weather, you can count on it for long-lasting results.

3. Invisible Glass Cleaner Windshield Treatment

This is the best water repellent spray for windshield.

Invisible Glass -Windshield Water Repellent

Like Rain X Windshield Treatment and Gtechniq – G1, Invisible Glass Cleaner Rain Repellent is easy to use. It repels water brilliantly, and much easier cleans dirt, insects, and bugs.

When I finished applying, there was no smearing. It also leaves no streaks.

Another thing I like about Invisible Glass Cleaner Rain Repellent is it fights the oily build-up inside the vehicle’s windshield. It’s strong enough to cut the film on the inside but won’t harm the aftermarket windshield tint and interior surfaces.

However, one thing I don’t like is the strong chemical smell from Invisible Glass Cleaner Rain Repellent.

I rate it 9.7/10. Buy it below:

Invisible Glass 92186 -windshield rain repellent

Invisible Glass Cleaner with Rain Repellent


  • Improve driver visibility up to 25%
  • It uses the neverwet formula
  • Simple application
  • Very cheap price
  • Don’t contain harsh detergents, dyes, and ammonia,


  • It has a strong smell
  • Only use for exterior

Best Water Repellent For Windshield (Buying Guide)

There’s a wide range of options for windshield treatments. They all promise to improve visibility and safety when driving. But by now, you know that are not built the same. Some just help the wipers work better, while others do an excellent job of pushing water drops when you accelerate.

Here are the essentials to consider when buying the best windshield treatment.

Your Location and Climate 

Where you live and climate significantly impact the efficiency of a windshield treatment. Depending on the type, you will find that some have outstanding water behavior. This means that the coating causes water to bead up and slide off easily from a glass surface.

If your area receives lots of rain, you will want a treatment that holds up well against inclement weather. It would help if you also considered whether or not you need it to resist snow and salt.

On the other hand, you will find some windshield water repellents are superior in dry weather. They can keep off streaks and spots.  But they are not very good at repelling water.

Meanwhile, a quality windshield treatment can provide water-repelling features no matter the climatic conditions.


The type of windshield water repellent will determine how long it lasts.

Nanotechnology-Based: The best hydrophobic windshield coating comes in a nanotechnology-based mixture. This formula forms a strong bond between the actual silica particles in the windshield and the treatment solution. Nanotechnology-based windshield treatments offer years of service.

Fluorinated-Based: Still a suitable compound, but you get to save some money. Fluorinated-based offer water beading technology. But they are not as effective as nanotechnology-based treatments.

Silicon-Based: Considered the weakest of the three, a silicon-based treatment does not last long. It does not offer a strong bond between the glass surface and the treatment. As a result, it needs to reapply frequently.


Some glass treatments are more involved than others in the application. For example, in the Gtechniq – G1, you need three layers of the product applied five minutes apart. It also needs applying in temperatures between 41 degrees Fahrenheit and 86 degrees Fahrenheit. There’s a specific step-by-step method to ensure you get a perfect finish.

Some people may feel intimated by the application process of Gtechniq – G1. Hence you may choose a treatment that needs only one layer application. However, you may need to redo the application more frequently than if you went for the Gtechniq – G1 bottle.

It’s always best to ensure if the glass treatment is applicable in your weather conditions. And whether or not you can manage the application process.


Windshield water repellents range in price from under $10 to over $60. Cheap options are often silicone-based. As such, you will need to apply the treatment frequently. It’s not ideal if you live in a very wet climate. This is because you will buy the product so many times that it makes sense to go for the more expensive option.

In the midrange price, options are fluorinated-based treatments. They last a little longer, say 12 months. In this case, you will want to find a product that can survive all seasons. That includes dirt and snow.

High-end options provide an all-season protective barrier. It also protects the windshield from nicks, scratches, streaks, and spots. Typically, a high-end hydrophobic glass treatment can last up to two years.

Sum up

We hope this guide helps you choose the best windshield water repellent. Of the three choices, Gtechniq-G1 lasts the longest. But it costs a tad more than the others. If you find the application process tedious or complicated, you may want to consider the Rain X . However, it means reapplication will be in two months.

And for those looking for a budget-friendly option, Invisible Glass is an all-time favorite. Grab it for superior water beading properties.

And remember, quality wiper blades are as important as an effective water repellent.

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