Window Film: Review & Recommendations

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Are you looking for an aid that not only offers you reliable visual protection, but also ensures that you can save energy costs? Then a window film is just the right thing for you. But what types of window films are there and how do they differ from each other?

In our window film test 2020 we present you the best and latest models from the respective categories. We also give you important tips and tricks on the subject of privacy protection. Whether self-adhesive films or films with assembly concentrate, you will find the best privacy protection films on the market with us.

The most important facts in brief

  • Window films are suitable to give you more privacy, save energy costs, provide UV protection and burglary protection. Depending on the film, not every model has all these properties.
  • The most frequently sold adhesive films are milk glass films, decorative films and insulating films. Insulating films save heating costs and the matt frosted glass films protect you from annoying glances from the neighbourhood.
  • Basically there are two types of foil foiling. The first type is self-adhesive foil and the second type is adhesive foil with assembly concentrate.

Window Film Test: Editorial Favourites

  • The best milk glass window film
  • The best mirror window film
  • The best transparent and heat insulating window film
  • The best window film with pattern
  • The window film with the best price-performance ratio

The best milk glass window film

The frosted glass window film from Lifetree is opaque, but still lets light through. The film is statically adhesive and even holds in moisture. Therefore it is also well suited for the bathroom. The film also has heat insulating properties and has a UV filter without blocking light.

The film is supplied in the size 90×200 cm. The required size and shape can be easily cut out and attached to the desired glass surface.

The best mirror window film

The mirror window film of the Rhodesy company is ideal for mirroring windows in one direction. So you can easily protect your privacy. The film is self-adhesive and easy to apply. It has a UV filter and is heat insulating.

The film is supplied in the size 90×200 cm. This film can be cut to size as required and applied to any smooth glass surface.

The best transparent and heat insulating window film

The window film from the company Tesa is heat-insulating but still transparent. It is particularly suitable for insulating windows. This window film is not attached directly to the pane, but to the window frame. This creates an insulating air space between the window pane and the film.

In addition to the 4×1.5 m film, the scope of delivery also includes a double-sided adhesive tape with which the film is fixed to the window frame.

The best window film with pattern

If you are looking for a special window film that not only protects your privacy but also looks pretty, this window film from rabbitgoo is a good choice.

When the light hits the foil, the result is a beautiful play of light inside the rooms. The film is applied without adhesive – it holds statically on glass surfaces.

This film is supplied in the size 44.5 x 200 cm, although the film is also available in other sizes and with other motifs.

The window film with the best price-performance ratio

Compared to other films, the frosted glass film from rabbitgoo is relatively inexpensive, but still of high quality. The film can easily be applied to glass surfaces due to static adhesion.

The film is supplied in the size 44.5×200 cm and can be easily cut to size as required.

Advisor: Questions you should deal with before you buy a window film

What types of window films are available?

Basically one can distinguish between seven different types of window films:

privacy film
Sun protection film
Dimming foil
Mirror film
Decorative foil
Burglary protection film
Cold protection film

These types partly have the same characteristics.

We present all the above mentioned types of foils in a table with their advantages and disadvantages.

Where can you buy a window film?

You can buy window films in specialist shops, as well as occasionally in supermarkets. The biggest sales of privacy films are online sales. This grows from year to year.
The selection is larger online and the prices can be easily compared. Likewise, customer reviews can be called up by mouse click. But if you prefer to ask the specialist staff for advice, then you don’t have to go to a DIY store.
The following shops offer window films:

Supermarkets
DIY store
Specialized trade

In the Internet, the different adhesive films are currently sold via the following shops, among others:

  • amazon.de
  • ebay.de
  • Echte

All slides that we present to you on this page have a link to at least one of these shops, so you can strike right away when you have found one that suits you and meets your requirements.

How much do window films cost?

There are huge price differences between the prices of adhesive films. The prices start at 5 Euro and end at 300 Euro. These price differences are the results of different quality and different lengths of the film.
As a rule, the larger and better quality a film is, the more expensive it is. The square metre price for the most expensive model is 37 euros.
The most sold protective foils have a length of 2 meters and a price of 20 Euro. We recommend these to you. The price-performance ratio is the best for these products.

What material is a window film made of?

All adhesive films are made of the following material: Polyvinyl chloride (PVC) PVC is available in two versions. The soft PVC is used for floor coverings and the hard PVC for window films.
The advantage of PVC is its durability and insulating properties. Exposure to sunlight does not affect its functionality. (Salty sea) water and air do not damage polyvinyl chloride either. All PVC products have a long life span.

For which applications is the window film suitable?

You can attach the different types of foil to any smooth surface. All windows and glasses that have been cleaned beforehand are suitable places for adhesive foils.

In children’s rooms, the living room, bedroom, kitchen and bathroom, some households have foil on the windows. You can also attach them to cars.

The place where most privacy films are applied is the bathroom. There many people want to protect themselves from prying eyes from outside. They also decorate their showers with it or only partially stick it on to cover certain areas.

Glass doors, such as a front door or a balcony door, are also popular mounting locations. Foils that are applied for purely decorative purposes differ only slightly from wall tattoos or wall templates.

Ifoha film speciality
By attaching sun protection films, it can become cooler in your room between 4°C and 7°C.
Dark tinted and highly reflective films cool more than those that are barely reflective and tinted. However, the cooling of the room also depends on the insulation, masonry and window frame material.
(Source:ifoha.de)

Decision: Which types of window films are available and which one is the right one for me?

Self-adhesive foil

With the self-adhesive film, the application and removal is less complicated. With this adhesive film you only have to peel off the protective film and then attach it to the window. The strength of the adhesion will keep away from your windows. If you have cleaned it thoroughly before applying it, it sticks super strong.

Advantages

No dirt when sticking on
You only need an editor
Mounting is fast
Quick removal

Disadvantages

If the window was not clean, the film falls off quickly
A few air bubbles appear. With a little practice, you’ll get them bubble-free.

Foiling with assembly fluid

The liquid of the adhesive is highly concentrated. Before you spray it on your window, you must mix it with distilled water. The mixing ratio is given in the instructions. The application causes a lot of dirt and dripping water.

Advantages

Better hold
If a piece of the film no longer adheres properly, you can use a hairdryer
No air bubbles and wrinkles with wet bonding.

Disadvantages

Mess during assembly due to the liquid
Besides the cutter knife, you’ll need a rag and a spray bottle
Adhesive residues are difficult to remove

Purchase criteria: You can compare and evaluate window films based on these factors

In the following we would like to show you the factors you can use to compare and evaluate adhesive films. This will make it easier for you to decide whether a certain film is suitable for you or not.

In summary, these are:

  • Occasion
  • Gestaltung
  • Dimensions
  • Scope
  • Type of foliation

In the following paragraphs you can read what the individual purchase criteria are and how you can classify them.

Occasion

You should especially think about why you want a protective film for the window. Usually these are the reasons:

  • Thermal insulation
  • privacy screen
  • Dimming
  • UV protection
  • Aesthetics
  • Burglary protection

If you want to save on heating costs, then buy a cold protection film. However, this is often kept neutral and has no design. Security loving people buy a burglary protection film. This film prevents glass splinters from falling down when the window is broken.

Did you know that some manufacturers offer a guarantee of up to 7 years for privacy films?
Most privacy films last even longer. This means that they are not only suitable for short-term use, but also for longer-term use.

If you have gotten hold of new furniture and do not want it to fade, then it is worth investing in a UV protection film. This filters the UV light and the colours of your furniture stay fresh longer.

If the annoying looks from the street or from your neighbours annoy you, you can remedy this with a privacy film. These are available in different variations. In matt, satin and in different colours.

Gestaltung

Decorative foils offer you a beautiful design. If you decide on a window film because of the design, we recommend a decorative film. These are available in different variations, motives and sizes. Now you can also design and personalise your own window film. You can also have them made to measure.

Decorative foils are available in different colours. However, the standard colour is white, which is partially matted. All other window films are either mirrored, transparent or matt. They are all kept neutral and are not conspicuous.

Dimensions

Measure your surfaces, which you want to stick on with an adhesive foil, exactly. Window films that are too small for large windows are dangerous. We would rather advise you to buy window films that are too large. You can still cut these to size with a cutter knife after you have stuck them on.

You should not buy adhesive films that are too small or that have the same dimensions as your window. Because if you have never used adhesive films before, you will surely make a few mistakes and eventually a piece of the film will become unusable.

Under no circumstances may panes be covered only partially with a sun protection film/mirror film. Tension or glass breakage may occur. A pane must always be covered with sun protection film over its entire surface! This does not apply to decorative films, milk glass films or transparent films.

Scope

If you have a lot of windows that you want to stick on, then it is advisable to buy larger window films. These are cheaper and you can cut them to size. Think about how many square meters of film you need.

As with other products, the price per square metre drops when you buy many metres per roll. So you can easily save 2 to 3 euros per meter.

Type of foliation

There are two types of foiling. One is the self-adhesive foil and the other is the foil by means of an assembly concentrate. You have to decide for yourself which method is more suitable for you. In the following section, we will show you the advantages and disadvantages of each type in a clear and understandable way.

Trivia: Worth knowing facts about window film

How to apply a window film?

Clean the surface, cut out the window film generously, then remove the protective film and place the film on one corner and smooth it down with your hands at the same time. There are different types of film. The self-adhesive ones and those that require an assembly concentrate.

For the self-adhesives you proceed as follows:

    Clean windows.
    Cut window film generously. You should not try to cut them to fit exactly. There is a high risk that the film will be too short at the end. You can remove protruding edges at the end with a cutter knife.
    Get another person. As is well known, gluing works better when you are two. You can split the work.
    One person holds the adhesive film and the other person pulls off the protective film.
    Place the foil on one corner and carefully brush it on the glass with your hands or an EC card.
    In this way you work your way along the window piece by piece.
    Then you remove the last air bubbles. It works best if you start from the middle and work your way out.

Window film with assembly concentrate:

Steps 1 to 4 are the same as for the self-adhesive film. Then follows:

    Spray the window pane and the film with the mounting concentrate.
    Apply it to the window and spray it also from outside with the concentrate.

Follow steps 6 and 7 in the same way. The concentrate that drips out at the sides must be wiped off with a cloth.

How is window film removed?

To remove the adhesive foil we offer you 2 tips:

  • Use a glass scraper
  • Take a hairdryer and blow-dry the foil. Afterwards it can be easily removed.

We recommend that you try out the tips.

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