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Energy Saving (Solar control and Heat insulating) Window Film PENJEREX®

Energy Saving summer and winter

This film improves air conditioning efficiency by shielding windows from heat waves (sunlight) during summer and reducing the amount of heat that escapes from the window in winter. It saves energy and electricity while improving comfort as well. Furthermore, it has UV shielding and anti-shatter properties.
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Business Hours(Taiwan time)08:30-17:30

Except for Sat, Sun, and Holidays

The special web contents which are explained the 5 features of thermal insulation film for windows PENJEREX®.

Solar control & thermal insulation film for windows "PENJEREX®" ensure energy-saving and comfort both in the summer and in the winter.


  • Industry-leading heat-insulation / U-value : 3.27-3.46 W/m2・K
  • Solar heat reduction : 40-51% of solar heat rejection.
  • Bright / visible light transmission : 68-77%.
  • UV cut (more than 99%) (sun protection)
  • Prevention of glass scattering.
  • Scratch-resistant hard coating.
While ordinary energy-saving films help reduce summer heat and cooling loads through their heat-reducing effect (cutting solar heat), PENJEREX also contributes to a reduction in winter coldness and warming loads through its thermal insulation properties.
As such, PENJEREX is effective both in the summer and in the winter. PENJEREX also permits energy-saving repairs, is highly transparent, cuts ultraviolet rays, and prevents the scattering of broken glass fragments.


*Film thickness does not include the release liner thickness.

Product No. Thickness[mm] Width[mm] Length[m]
PX-7060S 0.069 1524 30

Optical and thermal properties (on transparent float glass 3mm thick, in accordance with ISO 9050)

Product No. PX-7060S PX-8080S PX-7570N
U-Value 1) 3.27 3.46 3.46
U-Value 2) 0.58 0.61 0.61
Solar Reflection
33 25 22
43 52 54
24 25 24
Visible Reflection
Interior 12 8 7
Exterior 12 15 7
68 72 77
UV Transmission
<1 <1 <1
Shielding Coefficient 0.53 0.62 0.65


  • *1) : W/m2・K
  • *2) : BTU/h・ft2・°F


Current application

  • Glass windows of building

Potential application

  • Displays, vehicle windows, etc.

Contact Us

Business Hours(Taiwan time)08:30-17:30(Except for Sat, Sun, and Holidays)

Things to Note
  • This film product is for indoor application. Substrates are limited to glass.
  • In some cases, sunlight or fluorescent light may cause a rainbow colored pattern to appear on the film surface. This phenomenon occurs due to the application of a hard-coating, which strengthens the corresponding wavelength light, and is not due to any film abnormality.
  • After application, a small trace of water between the film and glass may cause bubbles or white clouded spots to appear. These will disappear once the water evaporates, but may remain for a longer period depending on the environment the glass is located in (areas with no sunlight, low temperature areas, high moisture areas, etc.)
  • When necessary, use a slightly damp, soft cloth or sponge to clean the film with water. When especially dirty, use a diluted neutral cleaning solution. Organic solvents and alkaline glass cleaners may degrade the film, so please do not use them for cleaning.
  • All values are measured values, and are not guaranteed. - Product specifications may be changed without notice.

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