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Window film

Window Film – Properties and Capabilities

Window film is a polymer-based material designed to enhance and modify the properties of glass. It can make regular glass opaque, shield a room against intense heat or bright sunlight, strengthen the pane against break-ins, or simply change how the window looks.

Window film applied to large glazing — view through tinted glass

Essentially, window film tailors existing glass to the specific needs of the client: privacy, security, sun protection or decoration — all achieved with one specialised glass covering.

Choosing the Ideal Window Film for Your Needs

Every type of window film has unique characteristics, and each film must be used for its intended purpose. For example, car window tinting films should not be used on residential windows — they can damage the glass in apartments, offices and private homes.

By their features, glass films fall into several primary types:

Each film type serves a distinct purpose. Some films share similar properties, but there is no one-size-fits-all solution — consider the attributes of each type to achieve the result you need.

Free cut-to-size window film service — Solaris 979

The Science Behind Window Film Specifications

Every professional-grade window film comes with a standard set of technical characteristics. These specifications tell you exactly what effect the film delivers:

  • VLT: light transmission capacity
  • VLR: light reflection rate
  • IR rejection: infrared reflection level
  • UV rejection: ability to reflect ultraviolet radiation
  • TSER: total solar energy repelled
  • Thickness: gauge of the film

These technical features enable customers to make informed comparisons between different types of window films. All our professional glass films come with these detailed technical descriptions. Their inclusion signifies our commitment to quality and underscores our meticulous approach as manufacturers.

Window film types compared – which film does what

The table below compares all window film categories in our shop. Click a film type to open its category.

Comparison of window film types — privacy, sun and heat protection, shatter protection, UV blocking and appearance change.
Film type Full privacy (day & night) One-way daytime privacy Sun glare reduction Heat rejection Shatter protection UV protection Changes glass appearance
Privacy films Some models Some models Some models Some models No Yes Yes
One way window film No Yes Yes Yes No Yes Yes
Mirror tint No Yes Yes Yes No Yes Yes
Solar glass film No Some models Yes Yes No Yes Yes
Frosted glass films Yes No Yes No No Yes Yes
Window protection film No No No No Yes Yes No
Decorative films No No No No No Yes Yes
Tint films No Some models Yes Yes Some models Yes Yes

Technical specifications printed on professional window film liner

Key Insights About Window Films

Clear 8 mil (224 micron) EN356 P1A window protection film roll

Recognising quality in window films

What does high quality mean in a window film? A premium glass film keeps its appearance and mechanical properties throughout its specified service life. The glass films we provide to our customers:

  • do not blur or bubble up;
  • stay adhered without peeling or flapping;
  • maintain their original colour.

Window film on a building facade after years of service — unchanged appearance

Benefits with Solaris 979's Window Film Offerings

Every order for our window films comes packed with added value:

  • A mounting concentrate for installation
  • A 3M squeegee or another larger tool
  • An additional free sample of window film to practise the installation process
  • A vast, comprehensive range of professional-grade coverings

Plus, we offer computerised cutting of window films: order pre-cut glass film pieces tailored to your specific dimensions.

Free installation tool kit with every window film order — Solaris 979

Indicators of inferior window film

  • Feels extremely thin – cheap films crack easily and have a significantly shorter lifespan. They also lack a protective coating, leading to visible scratches and defects.
  • Poor adhesive strength, resulting in weak adherence to the surface.
  • A cloudy appearance – some manufacturers cut costs by using recycled materials like plastic bottles and cellulose packaging. Inadequately purified, these materials make the covering murky instead of clear.
  • Dull reflection – low-quality mirror and sun-protective coverings often have insufficient metallisation, yielding a weak mirror effect and ineffective heat reflection.

The longevity of glass film

  • Interior glass film typically lasts over nine years.
  • Exterior films serve for over four years. On horizontal or sloped surfaces like roof windows or glass domes, expect up to five years, depending on conditions.

The environment heavily influences the longevity of externally applied films: weather, temperature fluctuations, and mechanical factors such as gusty winds or birds. Exterior coverings are designed with these influences in mind, but they generally have a shorter lifespan than interior ones.

Films don't stop working immediately after their service life — they gradually show signs of wear, with a natural decline of 10 to 20 per cent per year.

Mirror window film on residential windows — exterior view

Maintenance Insights

All our coverings come with a 2H protective layer — resistant to mechanical wear and standard household cleaning agents.

Please note:

  1. Do not treat the glass covering with steam generators or high-pressure washers. Such treatments can weaken the adhesive layer and cause the covering to peel off.
  2. The glass covering and its adhesive layer need adequate time to dry thoroughly — one to two weeks depending on the region and season.

Mirror window film installed on apartment windows

Service and Offerings for our UK Customers

Our clients can access films suitable for any glass type and form factor. We provide:

  • Professional-grade film rolls in various widths;
  • Extra-large glass films – a favourite for those not looking for DIY kits;
  • Custom-cut window film – computer-aided precision cutting tailored to the client's specifications;
  • For more details on our services, visit the glass film store section.


Brand: Kraft Films Model: Mirror Reflective Omg20
Silver reflective mirror window film Omg 20 Omg 20 is a silver reflective window film with a bright, clear mirror finish. It reflects 57% of visible light, rejects 84% of solar heat and screens your rooms from prying eyes during the day. You will find it in our reflective window film and mirror win..
£29.97
Ex Tax:£29.97
Model: Fg-k-300 frost glass film
Buy FG-K-300 Intense Frost Glass Film - Cut to Size FG-K-300 is a grey frosted glass window film with the densest frost effect in our range. It blocks the view from both sides, day and night, while letting daylight through - the glass looks evenly matte, like real frosted glass. It is self-adhesive..
£34.59
Ex Tax:£34.59
Model: DLX-01/01 White Privacy Films
DLX-01/01 White Privacy Films DLX-01/01 is a white matte film for glass, ordered online and cut to your size. It is opaque: the view through the glass is blocked from both sides, while 68% of the daylight still passes through, so the room keeps its brightness. The surface is plain matte white, wi..
£29.97
Ex Tax:£29.97
Model: Mirror Reflective Omg20 Ex
Exterior silver mirror reflective window film Omg 20 Ex Omg 20 Ex is a silver mirror film for outdoor installation. It gives the glass a clear mirror look, screens your rooms from prying eyes during the day and rejects 83% of solar heat before it even reaches the glass. You will find it in our refl..
£37.29
Ex Tax:£37.29
Model: Solar Silver Omg20 Ex
Omg 20 Ex – silver exterior solar film Omg 20 Ex is a silver solar film for outdoor fitting – an effective way to protect flats, houses and offices from solar heat. It transmits 24% of daylight (VLT) and rejects 83% of the sun's total energy (TSER). Effective sun protection for large glazed areas ..
£37.29
Ex Tax:£37.29
Model: FG-K-302 frosted effect films
Buy FG-K-302 Frosted Vinyl Window Film - Cut to Size FG-K-302 is a light grey frosted vinyl for windows - the middle option in our frost range. It hides what is behind the glass from both sides, day and night, and keeps the room bright. Every piece is cut to your size for free. What the film loo..
£34.75
Ex Tax:£34.75
Model: Kpmf frost film silver 51112
Buy KPMF 51112 Silver Sandblast Film - Cut to Size KPMF 51112 is a decorative sandblast-effect film in grey with a silver shade - the most textured model in our frost range. On the glass it looks like finely sandblasted glass with a soft metallic sheen, lets the light through and softly blurs what ..
£37.60
Ex Tax:£37.60
Model: Milk-White DLX-01-01W Film
DLX-01-01W Milk Frosted FilmWelcome to the sophisticated realm of the DLX-01-01W Milk Frosted Film, an exquisite addition to our distinguished window dressing anthology. Bask in the delicate, moonlit hue of this film, a testament to the zenith of frosted glass finesse.Luxuriously crafted for eleganc..
£31.41
Ex Tax:£31.41
Model: Solar Silver Omg35
Omg 35 – light silver solar control film Omg 35 is a light, silver solar control film for interior fitting. It transmits 34% of daylight (VLT) and rejects 67% of the sun's total energy (TSER) – a balance between letting light in and keeping the heat out. Order it cut to your own measurements on win..
£29.97
Ex Tax:£29.97
Model: Milk-White DLX-01-01W
Window film privacy Milk-White DLX-01-01W Presenting the Exquisite Privacy Milk-White DLX-01-01W Window Film: An Epitome of Grace and Peaceful Ambience. Step into the realm of unparalleled elegance with the Privacy Milk-White DLX-01-01W Window Film, a masterpiece crafted for the discerning indi..
£34.41
Ex Tax:£34.41
Model: Mirror Reflective Omg35
Semi-mirror reflective window film Omg 35 Omg 35 is a light silver semi-mirror film for indoor installation. It balances two needs: softening harsh sunlight and screening your rooms from prying eyes - while keeping the natural light that smaller windows cannot afford to lose. You will find it in ou..
£29.97
Ex Tax:£29.97
Model: White Privacy Film DLX-01/01
Buy White Matte Privacy Film DLX-01/01 - Cut to Size DLX-01/01 is a white matte privacy film for glass, cut to your size. The film is opaque: it blocks the view from both sides, yet 68% of the daylight still passes through, so the room does not go dark. It is self-adhesive, fitted on the inside o..
£29.97
Ex Tax:£29.97
Model: Mirror Reflective Bronze AT 35 EX
Bronze AT 35 Ex - light mirror reflective film Fancy a bronze hue for your windows? Bronze AT 35 Ex is a light bronze window film for external application. It is made by sputtering (metal deposition) - a technology that gives a softer, more natural look than classic silver mirror films, while still..
£41.83
Ex Tax:£41.83
Model: Solar Bronze AT 35 EX
Bronze AT 35 Ex – light bronze exterior solar film Bronze AT 35 Ex is a light, sun-reflecting tint for fitting on the outside of the window. Once fitted, the glass takes on a light bronze tone with a semi-reflective mirror effect. It transmits 34% of daylight (VLT) and rejects 75% of the sun's tota..
£41.83
Ex Tax:£41.83
Model: Solar Bronze AT 20 EX
Bronze AT 20 Ex – bronze exterior solar film Bronze AT 20 Ex is a self-adhesive exterior solar film with a distinct, mirror-like bronze tone. It transmits 19% of daylight (VLT) and rejects 83% of the sun's total energy (TSER) – one of the most effective models in the range. Bronze tone and effecti..
£41.23
Ex Tax:£41.23
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