Rejection. Release. Resolution.
Most window film is sold on one number. Bellfort's C.H.A.M.P architecture is built on three, because a film that only rejects heat still leaves it sitting in your glass.
Sunlight is not one thing
Roughly half the energy arriving at your glass is infrared — invisible, and responsible for most of the heat you feel. About 3% is ultraviolet, which does the fading and the skin damage. The rest is the visible light you actually want.
A conventional dark film treats all three the same way: block everything. A spectrally selective film separates them, which is why a lighter Bellfort film can outperform a much darker cheap one.
Ultraviolet · 300–400nm
Rejected at 99%. This is the band that fades upholstery and damages skin.
Visible · 400–700nm
Passed through at the shade you choose. This is the part that decides how the car looks.
Infrared · 700–2500nm
Rejected up to 95%. The band that actually makes the cabin unbearable.
Why one number never tells the story
Rejection
Turns infrared energy away at the glass line before it becomes cabin heat. This is the number every brand advertises, and on its own it is incomplete.
Release
No film rejects everything. Whatever it absorbs heats the glass, and hot glass radiates inward. Release describes how much of that stored energy the film sheds back outward.
Resolution
Thermal performance is worthless if the view degrades. Resolution covers optical clarity — no haze at night, no colour cast, no distortion in the mirrors.
Combined, the three behaviours are what Bellfort calls the C.H.A.M.P 3R concept. Published values are measured on film mounted to clear glass.
A manufacturer, not a reseller
Bellfort partners with world-class manufacturing facilities in the United States to develop high-performance, specially formulated security and solar control technologies for different users and industries.
In 2012 the founder of Bellfort began a research and development programme into the positive qualities of both hybrid and ceramic window film technology. That work produced the hybrid combination construction behind the C.H.A.M.P range — premium optical clarity together with high-energy rejection.
Our mission
Insistence on quality combined with advanced technology and a practical understanding of the business — which is what makes Bellfort a working choice for professional dealers and installers.
Our quality culture
Quality earns customer trust over the long term. Bellfort products meet strict requirements for quality and safety, and that standard is reaffirmed continually rather than assumed.
Our commitment
Competitively priced, professional-quality film supplied through a network of regional distributors who are experienced and dedicated to serving their dealer customers.
The detail behind the claims
Need the certified figures?
We will send the full technical data for the series you are considering, including performance at specific shades.