How to Tint Rear Window With Defroster


Window tinting is one of the easiest and fastest ways to give your vehicle a customized look. It also darkens your interior, which helps in reducing glare from the sun. Window films work by blocking ultraviolet rays that can fade fabrics and cause skin cancer. It keeps interiors cool while making them darker, preventing eye fatigue, and making it more comfortable for you when driving at night or in bright light conditions.

Some tint films on the market are even infused with UV blockers that make sure harmful rays do not get through, no matter what kind of weather you’re driving through. Today I am going to discuss how to tint rear window with defroster. So let us get started.

How to Tint Rear Window With Defroster

Summary: Many people like to tint their rear window in the summertime to keep cool. There are a few different ways to do this. Some people use a spray bottle filled with water and dish soap to clean the window and then apply a tinting solution. Others use a cloth or a piece of cardboard to apply the tinting solution.

Step-wise Guide on How to Tint Rear Window With Defroster

Step 1: Apply Masking Tape

First, apply masking tape to the edges of your rear window to keep it clean. Be careful not to cut yourself while cutting the film with a knife.

Step 2: Place the Tint on the Top Part 

Place the tint on the top part of your car’s back rear windshield and carefully cut around it with a razor blade or Exacto-knife, keeping in mind that you have to leave some extra space for defroster wires.

Step 3: Sand Away Uncovered Areas

Outline all the necessary holes left around by removing parts needed to allow installing the defroster. This is crucial as we don’t want to mess it up here! Carefully sand uncovered areas until complete removal of those areas allows easier installation of both headlight washers and the defroster.

Step 4: Remove Any Excess Adhesive

Now it’s time to install the film on your back window; stick it carefully with a silicone adhesive from an aerosol can of windshield sealer & be sure to wear gloves because that stuff gets nasty! Make sure you don’t get any bubbles in between. Otherwise, it will look like hell:)  Be patient and take time installing tint film because there shouldn’t be any wrinkles if done properly.  Remove any excess adhesive by gently brushing it with a soft cloth.

Install the Film on Your Back Window

Step 5: Wipe Off the Remaining Silicone Adhesive

Wipe off the remaining silicone adhesive from around the edges horizontally and vertically to ensure no gaps between your window and film. Otherwise, that will cause bubbles.  Apply some pressure on those areas where silicone leftovers are sticking out :).

Finally, carefully apply some soap water around corners & along edges to remove all excess silicone adhesive and let it dry for about 24 hours before using your back window defroster again. Or rather wait a couple of days until the sides lift up slightly, creating a “bendable” border where it’s easy to get underneath without leaving a sticky residue behind;) Wait until you can use it as if you leave it until the adhesive is fully cured. You won’t be able to get rid of little leftover silicone.

Step 6: Remove Masking Tape

Once you’re done with the edges and make sure that your defroster will work just like before without creating air bubbles on your back window:) You can remove masking tape off your rear window edges. Okay, now let’s wrap up! After installing defroster wires and headlight washers, you might notice that there still are a few “holes” left.

Well, in case if you want to cover them by applying some vinyl tint film that also covers those holes (or any other type of thin dark film), all we need to do is install a piece of black card stock behind our tinted film to make the holes completely invisible.

Make Sure That Your Defroster Will 
Workjust Like Before Without 
Creatingair Bubbles

Why Tint  Rear Windows Using Defroster?


Tinting windows is a great way to ensure privacy when parked or moving around.   Just imagine how hard it is for someone standing from outside to home. There are kids inside watching TV or playing video games without knowing what they are up to.  Grown-ups also need privacy at times, and we think tinted rear windows will come in handy too (excess drinking one night?).  By the way, we would advise you not to take this reason as the primary cause of tinting your car windows.


UV ray is one of the biggest enemies of a car’s interior. It causes fading in seats, carpets, and many other parts inside your vehicle (we have covered this topic before). However, you can protect those parts from getting damaged by using window tint film.

Theft Deterrent

Window tinting will also send an extra layer of security signal to potential thieves who want to try their luck stealing your car or breaking into it. We have seen some people using heavy plastic film for rattling purposes, but we don’t think that is a good idea because such material tends to break easily if the burglar puts some force into breaking into your car.


This is probably the best benefit when tinting the rear window with a defroster, especially during wintertime or rainy season, because the defroster helps to quickly clear up fog, frost, and condensation from the inside of your glass.  During those times, the rear window heats faster than others and needs extra protection.

Increases Privacy While Driving

by installing a privacy film on your windshield, not only will people outside be unable to see through it, but they won’t be able to tell who’s driving the vehicle!  Bonus for women drivers, I would say…

Increases Privacy   
by Installing a Privacy 
Film on Your Windshield

Increase Resale Value By Installing Window Tint

People who are in the business of buying cars can’t wait to see a car with tinted windows.  There’s no way they will leave your vehicle and drive to another parking lot if it has privacy glass installed on all windows. In addition, they definitely prefer window tint over plastic film for rattling because such films tend not to break easily compared to heavy-duty plastic material.

Some Helpful Tips and Suggestions:

1. It is always best to work in a well-ventilated area.

2. Make sure the area you work in is clean and free of dirt or debris.

3. Always use gloves when working with chemicals.

4. Follow the instructions on the product label.

5. Test the product on a small window before applying it to the entire surface.

6. Apply the tinting film to the rear window, starting at the top and down.

7. Use a squeegee to remove any air bubbles that may form under the film.

8. Allow the tinting film to cure for the amount of time recommended by the manufacturer.

Few Things to Consider When Tinting Rear Window With Defroster:

1. Choose the Right Tint Film. 

There are many types of tint films to choose from, so selecting the one that will work best with your car’s defroster is important. For example, some films are designed to work with rear window defrosters, while others are not.

Many Types of Tint Films to Choose

2. Measure the Window Size.

Before purchasing a tint film, you must measure the size of your car’s rear window. This will help you determine which size tint film to buy.

3. Install the Tint Film.

Once you have chosen a tint film, it is important to install it correctly. The film may not work with your car’s defroster if not installed properly. So make sure to read the instructions carefully before installing the film.

4. Test the Film.

After installing the tint film, it is important to test it to ensure it works properly. Turn on the defroster and see if the tint film effectively reduces the amount of heat coming through the window. If not, you may need to remove the film and try a different type.

5. Enjoy Your Tinted Rear Window!

Once you have installed the tint film, you can enjoy your newly tinted rear window! Just keep an eye on the film to ensure it is working properly. If you notice any problems, be sure to contact a professional for help.

6. Measure and Cut the Tint Film. 

Be precise when measuring and cutting the tint film, as any mistakes could cause problems installing the film. Also, make sure to allow for the extra film so you can trim it to fit perfectly.

7. Clean the Rear Window Surface. 

Before installing the tint film, it is important to clean the rear window surface. This will help ensure that the film sticks to the window and does not peel off.

Clean the Rear Window Surface

Frequently Asked Questions

What Should I Tint My Rear Windshield?

There are a few things to consider when tinting your rear windshield.

The first thing you need to consider is your area’s weather conditions. Ensure that the tint protects you from the sun’s harmful rays while allowing you to see clearly while driving.

You should also consider the time of day. It is important to keep the tint as light as possible during daylight hours so you can see clearly while driving. However, it is important to darken the tint at night or in inclement weather so you can see better while driving in low-light conditions.

Finally, ensure that the tinting company you choose is licensed and insured. This will ensure you get a quality product that will protect your safety and property.

Should Rear Windows Tint?

Rear windows tint can be a good way to reduce the amount of sunlight that enters your car and causes heat buildup. It can also help protect your car’s interior from UV radiation, which can damage the paint on your car.

What Should I Tint My Rear Windshield?

There are a few things to consider when tinting your rear windshield. The most important thing is to ensure that the tint is the right color for your car and the environment in which you will be driving.

Some other factors to consider include:

-The type of glass used in your windshield. Some types of glass are not compatible with certain types of tinting, so it is important to check with a qualified technician before making any decisions.

-The amount of sunlight that comes through your window. The darker the tint, the more protection it will provide against UV rays.

-The weather conditions in which you will be driving. Tinting can help reduce glare and improve visibility in rain or snow, but it may not be effective in extreme heat or cold.

Protection It Will Provide Against Uv Rays


Window tinting can benefit your car in several ways, and there are no reasons to wait another minute if you want to hide something from the others, improve glass safety or breathe easier during those hot summer days. However, when it comes to defroster installation, we think you might need professional help (or at least someone who has done this before) because it is not as easy job as installing a headlight washer system that most of the users handle on their own. I hope you have learned the process of how to tint rear window with a defroster from this article. Thank you!

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Jennifer Branett
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