Grossary of Terms

• SR HARDNESS: Scratch Resistance Hardness

  The measure of how strong the scratch resistant layer is to permanent plastic abrasion calibrated by a sclerometer.

• VLT: % Visual Light Transmission

  The percentage of total visible light that passes through window film or a similar glazing system. A lower VLT percentage allows improved glare control whereas a higher VLT percentage offers more natural lighting.

• VLR: % Visual Light Reflectance

  The percentage of total visible light that is reflected by window film or a similar glazing system. A higher VLR percentage allows improved glare control and often displays a more reflective and/or darker appearance.

• UV REJECTED: % Ultraviolet Radiation Rejected

  The percentage of Ultraviolet radiation that is rejected by window film or a similar glazing system.

• TSER: % Total Solary Energy Rejected

  The percentage of incident solar energy (heat) that is rejected by window film or a similar glazing system. This value is equal to the combination of solar reflectance and the portion of solar absorption that is outwardly re-rediated.