How to Install 3M™ Window Film: A Professional Guide and Important Considerations

3M brand glass heat insulation films come in different models for consumers to choose from. For example, the Prestige series PR70 offers heat insulation while retaining the outdoor view, and the mirror heat insulation film P18-Silver. Models range from the most transparent to semi-transparent, and are therefore highly favored by many consumers. Some consumers even try to DIY install 3M™ glass heat insulation film themselves. However, installing heat insulation film is different from applying tempered glass film on a mobile phone — the tools and steps required are much more complicated. Therefore, before installation, it is best to gather information and prepare the necessary tools before attempting DIY.

It is best to purchase 3M brand glass heat insulation film. Compared with other brands, 3M glass heat insulation film has a longer lifespan (5–10 years) and a better balance between heat insulation and light transmission.，

Detailed Steps:

Required tools and materials include: a spray bottle (mixed with water and a small amount of detergent) for cleaning, a squeegee or plastic scraper, scissors or a utility knife for cutting, a measuring tape or ruler, clean cloths or paper towels, etc.

Before installation, use a measuring tape to measure the dimensions of the glass that needs film. Then cut the film to a size slightly larger than the glass to avoid situations where it is not large enough later. Don’t worry — after fully applying the heat insulation film to the glass, simply trim off the excess film. In addition, to protect electrical appliances, furniture, and the floor near the windows, we recommend laying down protective mats to prevent them from being affected. After that, to make the heat insulation glass film fit the window more closely, clean the window thoroughly to remove all stains and dust so that the two fit together perfectly and achieve the best possible result.

Once everything is ready, peel off the release liner, spray soapy water on both the glass and the heat insulation film, then carefully apply it section by section. Use a water squeegee to push out excess water and air to prevent insufficient adhesion caused by too much water and the formation of air bubbles or wrinkles. Finally, apply it to the glass and trim off the excess film.

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How to Choose the Right 3M Glass Heat Insulation Film?

Most consumers place greater importance on light transmittance, heat insulation effect, and function/appearance. If consumers want to retain the outdoor view while ensuring that sunlight is not glaring and that natural light softens as it enters, they should choose a film with higher light transmittance. For example, PR70 can provide good natural light transmission while effectively blocking ultraviolet rays and heat.

The higher the heat insulation rating, the better the heat insulation effect. It effectively blocks external heat and keeps the indoor temperature comfortable. The Prestige series blocks infrared rays by up to more than 97%. In actual tests by Chengda, the temperature difference before and after use reached as high as 7.1 degrees. In addition, the mirror heat insulation film P18-Silver reaches as high as 77% and can achieve effective heat insulation.

3M glass heat insulation films offer a variety of different colors and appearances for consumers to choose from, making it easier for them to select a glass heat insulation film that they like and that matches their architectural style. For the purpose of privacy protection, P18-Silver has a light transmittance of only 17%, which is sufficient to block the view from outside looking in through the window. Finally, consumers should consider their approximate budget and preferences to select their preferred heat insulation glass film.

If you would like to learn more, you can refer to another blog we previously published — How to Choose the Right 3M Glass Heat Insulation Film?

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Maintenance Tips After Installation

After applying the heat insulation glass film, although the film has a certain degree of stain resistance, daily cleaning can prevent the accumulation of dust and dirt and maintain the transparency and function of the glass film. Normally, simply wipe the surface with clean water. Avoid using cleaners containing ammonia or other strong acids or alkalis to prevent damage to the film surface and destruction of the heat insulation effect of the glass film. When cleaning, also avoid using steel wool, hard-bristle brushes, or any sharp or hard objects that may collide with the heat insulation glass film to prevent scratches on the film.

In addition, regularly check whether the edges of the glass film are lifting and whether the glass film is completely adhered to the window. If there are any problems or damage, please contact a professional or replace it immediately.

In summary, installing 3M™ glass heat insulation film is a process that requires great care. Consumers must follow the steps carefully to avoid significantly reducing the effect. Consumers can choose a suitable glass heat insulation film based on the three factors of light transmittance, heat insulation effect, and appearance. For example, the PR70 series effectively blocks heat and ultraviolet rays while retaining the outdoor view, while P18-Silver is suitable for environments that require privacy. When doing DIY installation, be sure to use proper tools, thoroughly clean the glass, and operate carefully to ensure the best fitting result. Learn more about the details and prices of installing 3M heat insulation glass film.

If you have any questions, you can contact our technical consultants via WhatsApp 5596 4084 to learn more details.