IR Rejection vs TSER: Window Film Data Buyers Should Compare

Different numbers, different questions IR rejection describes a selected infrared range. Total solar energy rejection estimates the portion of total solar energy rejected by the glazing system. They are not interchangeable.

Ask how IR was measured An impressive IR figure may cover a narrow wavelength band. Request the wavelength range, instrument, glass substrate and test standard before comparing supplier sheets.

Combine documents with samples Use VLT and solar data together, then check haze, color, low-angle distortion, adhesive appearance and installation handling on real automotive glass.

Create safer sales material State what every metric means and avoid guaranteed cabin-temperature claims. A consistent comparison table builds more dealer trust than one oversized percentage.