Performance results were generated with LBNL Window 5.2 using 1/8” (3mm) clear glass and have been measured, calculated and reported in accordance with ASTM, ASHRAE and AIMCAL standards. Saint-Gobain Solar Gard LLC is a participating member of AIMCAL and the IWFA. Performance results are subject to variations within industry standards and should be used for comparative purposes only.

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Specification HPCharcoal 32HPCharcoal 22HPCharcoal 13HPCharcoal 6
Visible light transmittance % 29%22%13%6%
Visible light reflectance (exterior) % 9%7%6%5%
Visible light transmittance on auto glass % 25%18%11%5%
UV light blocked (300 to 380 nm) % >99%>99%>99%>99%
Total solar energy rejected % 53%55%57%61%
SIRR - Selective Infrared energy rejected %1 55%54%47%81%
IRER - Infrared energy rejected %2 53%52%54%57%

Performance Notes:

  • Performance results are calculated using NFRC methodology and LBNL Window software, and are subject to variations within industry standards and only intended for estimating purposes. This data is provided for informational purposes only and are subject to normal manufacturing variances.
  • Performance results based on film applied to ¼” (6mm) clear glass and a representative automotive glass with a base visible light transmission of 75%. Due to variations in glass performance, these values should not be used to comply with local tinting laws.


  • [1] SELECTIVE INFRARED REJECTION (SIRR) The percent of "film only" transmitted infrared energy (780 nm to 1700 nm) measured using the Solar Spectrum transmission meter (model # SS2450). The higher the number, the less infrared directly transmitted.
  • [2] INFRARED ENERGY REJECTION (IRER) The percent of infrared energy (780 nm to 2500 nm) that is directly reflected and absorbed and radiated outwards. Calculated as 1 – SHGC (780 nm to 2500 nm) using Lawrence Berkeley National Laboratory (LBNL) Window software and NFRC 200 solar spectrum from 780 nm to 2500 nm. The higher the number, the more infrared energy reflected and absorbed and released outwards. IRER is the endorsed calculation method of IWFA.