Blackout film, interior installation

  • self-adhesive
  • Indoor assembly
selbstklebende Verdunkelungsfolie für die Innenmontage Außenansicht
Montagevideo starten
selbstklebende Verdunkelungsfolie für die Innenmontage Innenansicht
Sichtschutzfolie ohne Lichteinfall
Verdunkelungsfolie, Innenmontage
Verdunkelungsfolie, Innenmontage auf einem Türfenster angebracht
Verdunkelungsfolie weiß für die Innenmontage
weiße Verdunkelungsfolie auf einem Tür Oberlicht
Kein Tageslicht fällt mehr durch das Oberlicht
Vorher/Nachher Vergleich der Glasscheibe
Weiße Verdunkelungsfolie innen auf dem Nebenfenster einer Tür angebracht
Weiße Verdunkelungsfolie auf dem Seitenfenster einer Tür angebracht
Weiße Verdunkelungsfolie auf einem Türausschnitt aus Glas
Verdunkelungsfolie auf einer Zimmertür
Weiße Verdunkelungsfolie auf einem schmalen Lichtband
Weiße Verdunkelungsfolie auf Zimmertür mit Lichtausschnitt
Weiße Verdunkelungsfolie auf einer Glastür
Geometry Linear metre
Pentagon with slope
Rectangle with bevel
Rectangle with two slopes
symmetric trapezoid
right triangle
symmetrical triangle
Gable window
Rectangle with segmental arch
Rectangle with basket arch
Rectangle with semicircle
Quarter circle
Circle section
Oval / Ellipse
Available in the dimensions:
min. 5,0 x 5,0 cm
max. 151 x 3.050,0 cm
Width [cm]
Height [cm]
from €1.00

Price per m² from: €36.90 Price per m²: €33.21 Price per m²: €36.90 incl. VAT plus shipping costs. Item no. 411020

Order accessories directly

Facilitates the installation of window films immensely! The films can be positioned on the glass without sticking. The concentrate is sufficient for an area of approx. 6m². The appropriate quantity is offered in the shopping basket.

Transfer concentrate

This installation set is suitable for smaller film installations of only a few windows with an area of around 1m² each. The set price saves you over 15% compared to the individual components.

Mounting set

This installation set is ideal for medium-sized film installations of up to five windows with a maximum area of 2m² each . You save almost 23% with this bundle compared to the individual components.

Assembly set professional

Delivery time approx. 1-4 days

CNC cutting accurate to the millimetre

free assembly tool

Properties of this film
Protection from
Look, Light
Privacy screen
very high
Light transmission
Mounting side
Indoor assembly
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This blackout film, also called block-out film, is white on the inside as well as on the...

This blackout film, also called block-out film, is white on the inside as well as on the outside.

In addition to the visible light, the solar radiation is also reduced by this blackout film. The rejection of the total solar energy (reduced radiation on the glass) is 86%. In addition, there is the enormously high UV protection of about 99%. This reduces the heating of the rooms, the room climate becomes more pleasant, the energy costs for the air conditioning are reduced, the fading of furniture and carpets is reduced and the room is darkened to a very high degree. Only about 10% of the light penetrates this blackout film.

This film is always used when a permanent darkening of the room is desired or when, for example, triangular windows in bedrooms cannot be darkened with roller shutters.

The scratch-resistant surface of the blackout film makes it easy to clean with standard glass cleaners. It is dirt-repellent and easy to clean.

Included in delivery

You should definitely order the transfer concentrate, art. no. 020010 additionally. It makes the installation easier and leads to a better result. Alternatively, you can also use a pH-neutral cleaner. This must be pH-neutral to prevent streaks from forming together with the film adhesive!

Any offcuts are not included in the scope of delivery.

Technical data and information at a glance...

Manufacturer's guarantee

The manufacturer provides a 10-year guarantee on this blackout film for interior installation. This guarantee covers flaking, yellowing and demetallisation of the film.

The durability of the films for interior installation is 12 to 15 years in Central Europe, depending on various factors.

Light reflection (indoor / outdoor) 88%
Light transmission 10%
Solar reflection 67%
Solar absorption 27%
Solar transmission 6%
Shading coefficient n.a.
Heat transmission coefficient (U-value) n.a.
Total energy transmittance (g-value) 0,13
Emissivity n.a.
UV reduction 99%
Glare reduction 95%
Total energy rejection (exterior) 86%

The values of the properties were determined by the film manufacturer. They have been calculated on 3 mm glass using the appropriate methodology and are subject to variations in process conditions in industrial production. They are for estimation purposes only.

Technical data
Material Polyester film
Film thickness approx. 100 µm
Adhesive Pressure sensitive adhesive system

Mounting recommendation

Based on technical data and extensive experience, we can recommend mounting on the following vertically installed glass types:

This blackout film should not be used with horizontal glazing or sloped glazing (skylights). In this case we recommend the blackout film for external installation, art. no. 412010.[OS_SUBTMPL:article/product_data_installation_recommendation_agb.html]

Answers to the most frequently asked questions...

General questions

Can I get a free foil sample?

Of course, please click on this link to access the corresponding order form. You are welcome to add to the list of items if you wish. There are no costs for you!

Will you also cut the film for me?

We cut each film to the exact millimetre according to the dimensions you enter. The cutting is free of charge. You can find detailed instructions on how to measure your panes here.

Alternatively, you can also cut your film by hand with a cutter knife. However, this requires a little manual skill, so you are usually better off using our free service.

Can you also cut a round blank or other geometry?

In general, almost all 2D shapes can be produced. Many geometries (e.g. triangles, trapezoids, circles) can be ordered directly via the online shop. To do so, please click on the orange rectangle to the right of the article image. You can then choose between many different shapes.

For shapes that are not specified, please send us a small sketch (photo) in which you specify the side lengths, radii or angles. Please contact us for this purpose.

Does the film also adhere to surfaces other than glass?

The window film adheres to all surfaces that are approximately as smooth as glass. When applying the film to plastic, please bear in mind that the adhesive may bond with the plastic, making it impossible to remove the film cleanly later.

How can I clean my window pane with the film in place?

You can keep your window pane clean as usual. The film should not be rubbed with sharp-edged objects (e.g. a brush).
You can find more information in our guide General care instructions for window films.

Can the film be removed without leaving any residue?

All window films can be removed without leaving any residue and without damaging the glass surface!
Below you will find detailed instructions on how to remove old window films.

Can you also print on films?

Unfortunately, we do not currently offer foil printing and do not have any partner companies with whom we can realise foil printing.

How to mount this film on the window...
Montagevideo starten
Installation video for window films. Click on the picture to start.

Assembly instructions for blackout foils (self-adhesive)

You will need the following items

  • Plastic bottle with spray head or with hand sprayer, adhesive tape, paper towels (not included)
  • Transfer concentrate (not included)
  • Glass cleaner (not included) or commercially available glass cleaner
  • Installation squeegee and glass scraper blade (included free of charge in the delivery).
  • Installation tips

    • Two people should carry out the installation!
    • Do not install any film at temperatures on the installation side below +6° C.
    1. Fill the spray bottle with 0.5 litres of water and add the transfer concentrate (30 ml) (enough for approx. 6 to 7 m² of glass surface).
    2. Thoroughly clean the glass with commercial or our glass cleaner!
      Remove all sticky particles (e.g. paint or fly dirt) preferably with the glass scraper blade. No dirt residues should remain on the glass!
    3. The sandblasting foil consists of the mostly white backing paper and the actual sandblasting foil.
      Now place the sandblasting foil with the view side down on the glass pane or similar. You are now looking at the back of the film.
      Then carefully and slowly peel off the backing paper at as shallow an angle as possible until it is about halfway along the entire length of the film. Cut the backing paper and stick it back onto the sandblasting film with a gap of about 2 cm to the remaining backing paper.
    4. Now hold the Blackout film in place while the 2nd person starting from the corner, and at the same time spray the adhesive side of the Blackout film that is now exposed with the liquid.
      Afterwards, the glass pane (surface to be pasted) must be sprayed with the liquid. Do not be sparing with the liquid, the film and pane should be well wet.
    5. Place the Blackout film on the glass, the film should slide back and forth well, otherwise spray the glass again.
    6. Now spray the other side of the Blackout film as well, this will make it easier for you to work with the mounting squeegee.
    7. Now press the liquid out evenly with the mounting squeegee from the centre to the right and to the left. Make sure that there is no residual water left under the film! Repeat this procedure several times to remove even invisible water residues. When doing this, wrap the supplied squeegee with a paper towel to avoid any scratches.
    8. Carefully wipe the edges and the foil with a soft cloth. If necessary, press the edges again with the mounting squeegee.
    9. Now let the Blackout film dry for three days without touching it.
    10. Wait two weeks before cleaning the film for the first time and never use hard objects (brush or blade) to clean it. Commercially available glass cleaners can be used.

    FAQ`s about the installation

    Can I carry out the film installation alone?

    Films that are no larger than 1m² can be installed alone without any problems.
    For larger pieces, it is recommended that two people carry out the installation. This makes it easier to handle the film and place it on the pane.

    How can I avoid dust inclusions under the adhesive back side?

    First, clean your windows really thoroughly with glass cleaner. Then go over the entire window pane again with our supplied glass scraper blade to remove any hard-core impurities on the pane (such as fly droppings). These fine stains are often invisible to the naked eye and you will be amazed at what the blade still removes.

    In addition, do not lay the Blackout film after peeling off (covers the adhesive side for transport) on the floor to get it wet. Rather, pull a table nearby to spray the film on. On the floor you will always stir up very fine dust particles, which will then settle on the adhesive side facing upwards. These dust particles can later show up on the pane under the Blackout film, which is something to avoid.

    Can I apply the Blackout film without transfer concentrate?

    Alternatively, you should at least use a pH-neutral cleaner. We do not recommend installation without any additive at all, which increases the gliding properties of the water!

    We strongly advise against the use of water diluted with detergent. This can lead to streaking due to a reaction with the film adhesive.

    Does the film have to be applied perfectly to the glass at the first attempt?

    No, this is not necessary as long as you have sprayed the adhesive side of the window film and your glass sufficiently wet. Due to the moisture, the adhesive has no adhesive effect, which makes it easy to move the film and position it precisely. It is even possible to remove the film from the glass again and reapply it.

    After mounting, small bubbles formed the next day

    The bubbles consist of residual liquid that was not pressed out from under the film when it was applied. Over time, these run down between the already drying film adhesive as far as they can under the film and collect in some places. The bubbles disappear by themselves when the remaining liquid diffuses through the film to the outside. Depending on the outside temperature and sunlight, this can take up to three or more weeks before the film fits like a second skin.

    In any case, you should wait this time and do nothing. In most cases, the blisters disappear all by themselves!

    How easy is it to remove the film?

    The window film itself can be easily removed. To do this, detach one corner and fold it over directly. The film can then be removed from the glass at as flat an angle as possible.

    It is possible that residues of the film adhesive remain in some places. These can be soaked with our adhesive remover or acetone and then removed again with a glass scraper or ceramic field scraper. You will find detailed instructions on how to remove window films on our homepage in the FAQ`s.
Order a product sample...

We will be happy to send you a free sample of this and up to four other films without obligation.
The samples are approx. 9 x 9 cm in size and will be sent to you free of charge and without obligation by letter post.

1. select sample (max. 5 pieces)
Blackout film, interior installation Blackout film, interior installation
Art.-Nr. 411020
Please select at least one sample!
2. Specify shipping address
Flat, floor, etc. (optional)
Here you can find our privacy policy.
Thank you very much!
We have received your foil requests.
The samples are usually sent to you within one working day.

Assembly instructions

Montagevideo starten
Installation video for window films. Click on the image to start.

Tool for easy assembly

The tool sets and accessories offered by Velken will be very useful for the success of your installation! Adhesive films, electrostatic films, decorative coatings... for each product there is the appropriate tool.

In addition to the assembly video, take a look at the detailed assembly instructions.

- 30 %
Assembly set professional
This installation set is ideal for medium-sized film installations of up to five windows with a maximum area of 2m² each . You save almost 23% with this bundle compared to the individual components.
040020 - Assembly set professional
€14.25 €9.95
selbstklebende Verdunkelungsfolie Außenmontage, Außenansicht ist weiß
  • Outdoor installation
  • self-adhesive
Privacy screen by day and night:
Light transmission:
€44.27 / m²
selbsthaftende Verdunkelungsfolie schwarz, Außenansicht
  • Indoor assembly
  • glueless
Privacy screen by day and night:
Light transmission:
€39.29 / m²
- 22 %
Mounting set
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€6.35 €4.95
- 30 %
Assembly set professional
Assembly set professional
€14.25 €9.95
Cutter knife
Cutter knife
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€23.90 / m²
- 22 %
Mounting set
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€6.35 €4.95
- 30 %
Assembly set professional
Assembly set professional
€14.25 €9.95
- 28 %
Premium mounting set
Premium mounting set
€49.15 €34.90
Sichtschutzfolie grau matt
Privacy film, matt grey
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Anti-Rutsch-Folie R11
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Tile foil, ivy green
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Questions about the item1
1 Question(s) in other languages.
Click here to view these question(s).
Wird der Raum durch die Folie komplett abgedunkelt oder wird ein Restlich durchgelassen?
Ist die Folie selbstklebend und wozu das Montageset? Ist die Folie auf den beiden Außenseiten weiß? (das wäre wichtig).
Ralf K. am 01. November 2022
Der Raum wird gut abgedunkelt, es kommt nahezu kein Licht mehr durch die Folie durch. Das Montageset kann optional mit bestellt werden, falls man die Komponenten nicht im Haushalt zur Hand hat. Diese Verdunkelungsfolie ist selbstklebend und auf beiden Seiten weiß.
Velken Service-Team on 01. November 2022
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Reviews 27

Customer reviews

∅ 5,0   from 5 stars for 27 ratings
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4 month agoVerified purchase

Super schnelle Lieferung
Leichte und schnelle Montage durch hervorragende Anleitung!
War mein 1. Fenster, weitere werden folgen. Auch die Muster zur Probe verlief hervorragend, für mich hilfreich für meine Planung für weitere Fenster
Wichtig Richtig messen, der Zuschnitt ist 100% genau

4 month agoVerified purchase
Kundenservice ausbaufähig

Die Folie an sich ist von top Qualität. Auch die Montageanleitung ist fast perfekt. "Fast" deswegen, da zwar darauf hingewiesen wird, das man zwei Klebestreifen benutzen sollte, um die Folie vom Träger zu lösen - aber nicht, dass man es unbedingt tun MUSS. Ich habe es ohne Klebestreifen versucht und auch direkt die Schichten voneinander lösen können. Nur um dann festzustellen, dass ich die Folie dadurch offenbar zerstört habe (einzelne Schichten der Folie gelöst). Das war dann wohl ein Anwenderfehler meinerseits. Was aber mE gar nicht geht war die schnippisch, sarkastische Antwort vom Kundenservice auf meine Nachfrage, was ich falsch gemacht habe ("kommt davon").

Martin Siegel Customer service 4 month ago

Vielen Dank für Ihre Bewertung. Wir möchten uns dafür entschuldigen, dass das geschriebene Wort wohl etwas zu sachlich war und dadurch falsch aufgenommen wurde. Um das Missverständnis für andere Interessenten aufzuklären folgt unsere originale Antwort auf die gestellte Frage: "... Das passiert, wenn man versucht die Schutzfolie mit den Fingern zu lösen und kein Klebeband benutzt. Man löst dann die einzelnen Schichten der Folie und diese ist dann häufig nicht mehr zu verwenden."

5 month agoVerified purchase

Artikel wie in der Beschreibung. Einfache Montage. Bei größeren Fenster am besten zu zweit sein. Super zum abdunkeln wenn die Plissees nicht ausreichen.

6 month agoVerified purchase
Alles gut

Artikel ist wie erhofft, Montage ok, bei befolgen der Anweisungen aber gut möglich. Verdunkelt gut, also alles gut! Klare Empfehlung

7 month agoVerified purchase
Alles super

Perfekter Zuschnitt mm genau & einfache Montage, die Beschreibung kurz und verständlich. Sehr schnelle Lieferung.
Ich werde wieder bestellen. Material wie beschrieben lichtundurchlässig.

7 month agoVerified purchase
Sehr gute Folie!

Schnelle Lieferung, gute Qualität der Folie und gute Montageanleitung. Sehr zu empfehlen. Eine gute Lösung zur Verdunklung unseres doch sehr individuellen Dachgeschossfensters.

8 month agoVerified purchase
Super Folie und schnelle Lieferung

Überraschend schnell geliefert und macht genau was sie soll. Unser Sohn schläft jetzt im dunkleren Zimmer deutlich besser und länger.

10 month agoVerified purchase
Verdunklungsfolie innen

Abwicklung des Auftrages,
Beschreibung der Montage
und natürlich das Produkt selbst
alles SEHR GUT.
Die Firma kann ich nur empfehlen.

one year agoVerified purchase

Das ist eine sehr gute Folie. Sie ist besser für helle Wände geeignet. Aber muss man das Glas sehr genau messen, vielleicht mit einem Papiermaßband.

Martin Siegel Customer service one year ago

Vielen Dank für Ihr Feedback! Wir empfehlen einen Zollstock zu nehmen, diesen nur halb so breit wie das Fenster ist auszulegen. Dann messen Sie zuerst bis zur Mitte des Fensters und machen sich einen Strich auf einem Stück Kreppband bei einer gut ablesbaren Zahl. Anschließend legen Sie den Zollstock auf die andere Seite um und addieren das zweite Maß zu dem ersten.

one year agoVerified purchase
Sehr gute Folie

Die Folie lässt sich sehr gut verarbeiten und erfüllt zu 100 Prozent die Anforderung.
Der Bestellvorgang war sehr gut und die Lieferung erfolgte sehr zügig.
Gerne wieder.

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