Technical window films
Low‑E, anti‑fog, photoluminescent, electromagnetic shielding: specialist films for projects that go beyond standard solutions.
Some glazing has constraints that solar, decorative or security films don’t cover. Glass that fogs up constantly, a room that must block electromagnetic waves, a building losing heat through glazing in winter, or signage that must remain visible in the dark. Our technical films address these specific cases with dedicated solutions. These aren’t films you install everywhere — they’re films you specify when the need is clearly identified.
Single‑function films for precise problems
Anti‑fog film
Condensation on cold glazing is a recurring problem wherever there’s a significant temperature difference between the two sides of the glass. Refrigerated display cases, cold rooms, indoor pools, spas: fog forms on the glass and turns it opaque within minutes.
Anti‑fog film changes the surface behaviour of the glazing. Instead of forming opaque droplets that blur visibility, water spreads into a continuous, transparent layer that drains naturally. The glass stays clear at all times.
Photoluminescent film
Photoluminescent film absorbs ambient light during the day and releases it in the dark. In a power outage or during night-time evacuation, filmed glazing remains visible and easy to identify without any external power source.
It’s a passive signage solution used in buildings with fire-safety constraints. Glass doors, corridor partitions and emergency exits become luminous markers that guide occupants.
Other technical solutions
Low‑emissivity (Low‑E) film
In winter, standard glazing lets indoor heat escape outdoors through infrared radiation. Low‑E film reduces this effect by reflecting part of the infrared radiation back into the building.
The effect is comparable to upgraded insulating glazing, without replacing the existing glass. It’s the solution for older buildings with single glazing where replacement would be too costly or technically impossible.
Electromagnetic shielding film
Some rooms need protection against electromagnetic waves — either to prevent signals from leaving (data confidentiality) or to prevent external signals from disturbing sensitive equipment (labs, studios).
The film includes a conductive metallic layer that attenuates radio waves across a wide frequency range. Applied to the glazing, it complements wall shielding to create a protected enclosure.
Enhanced thermal insulation film
Beyond Low‑E, some films combine multiple thermal functions to maximise glazing insulation performance: solar rejection in summer, heat retention in winter, and reduced cold‑wall effect.
These high‑performance films are specified for commercial buildings subject to energy-efficiency targets, older buildings undergoing renovation, and projects aiming to improve ratings without replacing glazing.
Measured and documented performance
Each technical film is supplied with technical datasheets featuring laboratory-tested performance values. Thermal gains are measurable and documented with solar factor values, light transmission and U‑value.
These data allow thermal engineering offices to incorporate the film into energy performance calculations. These aren’t promises — they’re verifiable data.

