Car Window Film: Types, Process & Benefits

Paste for automotive window films is an effective solution to prevent heat, protect health and increase the aesthetics of the car. Heat-insulating film acts as a filter, helping to minimize the amount of heat and UV rays entering the car, providing a cooler and more comfortable space.

In the era of rapid technological development, car window film has become an indispensable solution for modern car owners. With advanced multi-layer technology combining ceramic nano particles and precious metals, window film is not only a normal heat shield but also a comprehensive "protective layer" for your beloved car.

Statistics show that a car covered with high-quality heat-insulating film can reduce cabin temperature by up to 60%, block up to 99% of harmful UV rays, and save 30% of air conditioning energy.

This article will be a guide to help you understand the types of heat-insulating films from advanced Nano Ceramic technology to optical films, standard installation procedures, as well as valuable experiences in selection and preservation to ensure long-term use. Follow along!

Understanding Automotive Window Film

Automotive window film is a thin film that is applied to the car's glass, working on the principles of heat reflection, heat absorption and UV blocking. This product line is usually made up of many layers, including a polyester layer, an adhesive layer, an anti-scratch coating and an anti-UV coating, with the number and composition of the layers varying depending on the manufacturing technology.

When choosing heat-insulating film, it is important to pay attention to the parameters VLT, IRR, UVR and TSER, because they directly affect the heat-insulating efficiency and visibility while driving.

1. Working principle of heat insulation film

Heat-insulating film works based on three main principles: heat reflection, heat absorption and UV blocking.

When sunlight shines on the car, the heat-insulating film will reflect some of the heat energy to the outside, while absorbing the remaining heat and radiating it to the surrounding environment instead of transmitting it into the car. In addition, the film can also filter up to 99% of harmful UV rays, protecting the health of people sitting in the car.

2. Detailed structure of heat insulation film

Window film is usually made up of multiple layers, including a polyester layer, adhesive layer, scratch-resistant coating, and UV-resistant coating.

• The nano ceramic or metal coating will determine the film's heat insulation ability.
• For example, some high-end films have up to 7 layers, with a total thickness of about 50-100 micrometers.
• PET (Polyethylene terephthalate) layer gives the film durability.
• Acrylic adhesive layer helps the film adhere firmly to the car glass.
• Scratch resistant coating increases film durability.
• UV (Ultraviolet) coating filters ultraviolet rays.

Depending on the manufacturing technology, the number and composition of layers can vary. For example, 3M Crystalline optical window film has up to 200 ultra-thin layers.

3. Technical specifications of car insulation film

When choosing a window film, you need to pay attention to parameters such as visible light transmittance (VLT), infrared reflectance (IRR), ultraviolet reflectance (UVR) and total thermal resistance (TSER).

• VLT indicates the amount of visible light transmitted through the film, typically ranging from 5% to 70%.
• IRR represents the ability to block infrared rays, causing heat.
• UVR represents the ability to block ultraviolet rays.
• TSER indicates the total solar energy intercepted.

These parameters directly affect the insulation efficiency and your visibility while driving.

What are the benefits of applying heat-insulating film to cars?

Applying heat-insulating film not only brings comfort but also protects health, interior, increases longevity, saves energy and increases safety for your car.

• Protect your health and comfort

Window film blocks up to 99% of harmful UV rays, helping to protect skin and eyes from the harmful effects of sunlight. At the same time, reducing the temperature in the car helps passengers feel more comfortable, especially on hot days.

• Protect interior and increase vehicle life

Window film helps protect the car's interior from the effects of high temperatures and UV rays. This helps reduce the risk of cracking and fading of parts such as leather seats, dashboards, and plastic parts in the car.

• Save energy and increase safety

Thanks to its insulating properties, the film helps reduce the load on the air conditioning system, thereby saving fuel. In addition, heat-insulating film also helps reduce glare, increasing visibility for the driver, and keeping the glass from shattering in the event of a collision.

What types of car insulation films are there?

There are 4 popular types of heat-insulating films on the market: nano ceramic heat-insulating film, metal sputtering heat-insulating film, colored heat-insulating film and optical heat-insulating film.

1. Nano Ceramic heat insulation film

Nano Ceramic heat-insulating film is a type of glass film produced by advanced nano technology, using ceramic particles of super small size. This technology provides superior heat insulation, protects health and increases the aesthetics of the space used.

Advantage:

• Superior insulation.
• Effective UV protection.
• Durable.
• Increase privacy.
• Does not interfere with electromagnetic waves.
• High aesthetics.

Disadvantages:

• The price is higher than that of conventional heat-insulating films.
• Requires high construction techniques, requires skilled workers to ensure quality.

Popular Nano Ceramic heat-insulating film brands:

• 3M Ceramic IR Series
• Llumar Ceramic Pro
• V-KOOL K Series
• Nano Ceramics film
• Titan series

2. Metal sputtering insulation film

Metal sputtering insulation film is a type of film created by using metal ions to bombard and coat the surface of polyester film.

This process is carried out in a vacuum environment, ensuring the accuracy and quality of the coating.

Advantage:

• Superior insulation.
• High UV protection.
• Durable.
• High aesthetics.
• Reduce glare.

Disadvantages:

• High price.
• Electromagnetic wave blocking.
• High reflectivity.

Featured brands:

• 3M
• Llumar
• V-Kol
• Ntech
• Inmax

3. Tinted insulation film

Tinted window film is a type of window film used to reduce the amount of heat and sunlight that passes through glass. It works by absorbing and reflecting solar energy, helping to keep interior spaces cooler.

In addition, tinted film can also change the color of the glass, providing high aesthetics and privacy for users.

Advantage:

• Low price.
• Anti-glare ability.
• Block UV rays.
• High aesthetics.
• Increase privacy.

Disadvantages:

• Low insulation efficiency.
• Not very durable.
• May interfere with night vision.
• Poor heat reflection.

Featured brands:

• 3M
• V-KOOL
• UV100
• Ntech

When choosing tinted heat-insulating film, you should carefully consider the advantages and disadvantages of each type of film, as well as your needs and economic conditions to make the most appropriate decision.

4. Optical Film

Optical Film is a thin film designed to reduce the amount of heat transmitted through glass, while allowing visible light to pass through. This film works on the principle of selective reflection and absorption of light wavelengths, helping to eliminate harmful infrared (IR) and ultraviolet (UV) rays, which are the main causes of high temperatures in cars or houses.

Advantages of optical insulation film:

• Superior insulation.
• High transparency.
• Health protection.
• Enhanced privacy.
• Glass protection.

Disadvantages of optical insulation film:

• High price.
• High technical construction requirements.

Popular optical window film brands:

• 3M
• Llumar.
• Classis.
• There are also some other brands such as: Vkool, Cool N Lite, Nano film...

Professional car insulation film application process

To ensure the effectiveness and durability of the film, the film application process must go through 4 main steps: preparing the glass surface, cutting and shaping the film, applying the film/treating air bubbles and finishing.

Step 1 – Prepare the glass surface:

• Check and peel off old film (if any).
• Clean the glass surface thoroughly with a specialized solution.
• Use a soft squeegee to completely remove dirt and glue residue.

Step 2 – Cut and shape the film:

• Measure the glass size accurately.
• Cut the film 1-2cm extra to ensure coverage.
• Shape the film to fit the curve of the glass.

Step 3 – Film application and air bubble treatment:

• Spray the solution onto the glass surface to create smoothness.
• Place the film on the glass and align the position.
• Use a hard plastic squeegee to push out air bubbles and water.
• Work quickly to avoid the glue drying.

Step 4 – Check and finalize

• Check carefully to make sure there are no air bubbles.
• Trim off excess film.
• Use a hair dryer to dry and shape the film.
• Final check for adhesion and aesthetics.

What are the experiences when using and preserving car insulation film?

To keep the heat-insulating film effective and durable, you need to know how to clean/use the heat-insulating film, handle common problems with the film and pay attention to the warranty period/conditions of the heat-insulating film.

Clean the insulation film properly:

• Use a soft cloth and a specialized cleaning solution to clean the film.
• Do not use strong detergents or sharp objects to avoid scratching the film.
• Limit cleaning within 3 days after application.
• Limit rolling up and down the car windows for the first 3-7 days after applying the film.
• Use a soft cloth and a specialized cleaning solution to clean the film.
• Never use strong detergents or sharp objects to avoid scratching the film.
• Periodically check the film edges, if there are signs of peeling, it should be handled promptly.

Things to avoid when using film:

• Avoid leaving your car in direct sunlight for too long, especially on hot days.
• Do not stick adhesive objects on the film surface.
• Avoid strong impacts on car windows to avoid tearing or damaging the film.
• Avoid washing your car with high pressure water jet on newly filmed windows in the first few days.

Troubleshooting common problems:

• Peeling film edges: Due to improper film application or external force.
• Blistering film: Due to uneven adhesive or excessive heat.
• Scratched film: Due to impact or improper cleaning.
• In case the film is peeling, blistering or scratching, you need to contact the warranty center for handling.

Warranty period and warranty conditions:

• The warranty period for window film usually ranges from 5 to 10 years, depending on the type of film and manufacturer.
• Warranty conditions usually cover defects caused by the manufacturer or during construction.
• Damage caused by external force or improper use is usually not covered by warranty.
• Please read the warranty terms carefully before deciding to apply the film.

FAQ – Frequently Asked Questions

1. Does window film affect cell phone and GPS signals?

Modern window films such as Nano Ceramic or Optical do not interfere with cell phone and GPS signals. However, some metallized films may cause slight interference.

2. What should be noted when applying car heat insulation film?

When applying heat-insulating film to your car, you need to pay attention to the following 4 things:

• Choose movies with clear origin and reputable brand.
• Choose a professional, experienced contractor.
• Check the film specifications carefully.
• Clear warranty requirements.

If you need to apply Nano heat-insulating film, you can refer to article 3 Note on applying nano heat-insulating film to cars.

3. How long does it take to use the car after applying heat-insulating film?

Normally, you need to wait 24-48 hours for the glue to dry completely. However, you can use the car immediately after applying the film, but you should not lower the windows for the first 3-5 days.

4. How to distinguish between real and fake heat-insulating film?

Identify real/fake heat insulation film by:

• Real films usually have clear labels and full technical specifications.
• Real film has high transparency, no glare or blur.
• Real film has good heat insulation ability, you can feel the difference when you try it.
• Ask the seller to provide documents proving the origin of the product.

5. Does window film affect night vision while driving?

High quality window film with appropriate VLT does not significantly affect night vision. However, it is recommended to choose a film with higher VLT for the front window to ensure safety.

6. How long can window film protect car interiors from fading and cracking?

High quality window film can protect vehicle interiors from UV rays and heat for 5-10 years, depending on film quality and conditions of use. 3M insulation film Can effectively protect car interiors for a longer period of time, up to 15 years.

7. Which garage has reputable and good price car window film in Ho Chi Minh City?

Thanh Phong Auto is a reputable address specializing in car heat insulation film that you should refer to. At Thanh Phong Auto, the service car insulation film Not just a technical process, but a comprehensive, high-class car care experience.

Thanh Phong understands that each car is a work of art, and protecting it from the effects of weather is extremely important. Therefore, Thanh Phong Auto is committed to providing customers with optimal heat-insulating film solutions, with the following outstanding advantages:

Top quality products:

• Thanh Phong Auto cooperates with reputable heat-insulating film suppliers, such as 3M, LLumar, and many other famous brands, ensuring superior quality and heat-insulating efficiency.
• Providing a wide range of films, from high-end nano ceramic films to metal sputtering films, to meet all customer needs and budgets.

Professional technical team:

• Our team of technicians are well trained and have many years of experience in the field of heat insulation film.
• Professional and meticulous construction process, ensuring the highest accuracy and aesthetics.

Modern equipment:

• Thanh Phong Auto invests in modern equipment, including automatic film cutters, infrared drying lamps, and specialized tools, helping to improve efficiency and construction quality.

Dedicated and thoughtful service:

• Always listen and advise customers enthusiastically, helping customers choose the type of film that best suits their needs and preferences.
• Long-term warranty commitment for products and services, bringing absolute peace of mind to customers.

With the above outstanding advantages, Thanh Phong Auto is confident to be a reliable address for you to choose car heat insulation film service, providing perfect protection and enhancing the class of your car.