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Background

Automotive manufacturers are tasked with designing fuel efficient and environmentally friendly vehicle choices to reduce carbon emissions. These challenges must be accomplished without sacrificing the performance and comfort that consumers demand. As daylight opening requests from stylists increase, it yields more acute windshield installation angles and increased windshield and sunroof surface areas, creating additional challenges in mitigating heat. S-LEC™ Solar Control Films reduce the transmission of heat (mid-infrared) rays from the sun, effectively controlling the in-car temperature and creating a comfortable environment, while reducing demand on air conditioning and improving fuel economy.*

*Tests have shown that compact cars with S-LEC™ Solar Control Film that use air conditioning in a traffic jam can expect an increase in fuel economy of approximately 3%.

Technology

Infrared ray filtering particles are distributed throughout interlayer film

S-LEC™ Solar Control film incorporates Sekisui’s fine particle dispersion technology which allows a variety of engineering functions to be evenly distributed within a PVB interlayer film resin. This technology significantly reduces the transmittance of UVA, UVB and infrared rays. The reduced exposure and heat on the skin, enhances the consumer satisfaction and driving experience.

Infrared ray filtering particles distributed throughout interlayer film reduces transmittance of IR rays.

Performance

With solar control film, heat mitigation performance improves

With S-LEC™ Solar Control Film, heat mitigation performance improves by quenching many of the sun's mid-infrared rays.

S-LEC™ Solar Control Film quenches many of the sun’s mid-infrared rays between 1,500 and 2,100 nm. As demonstrated in the graph, the effectiveness of S-LEC™ Solar Control Film surpasses heat absorbing green glass.


Glass can now shield the cabin from heat, therefore decreasing the burden on air conditioning alone to cool the vehicle

Vehicle tests have shown that laminated windshields with S-LEC™ Solar Control Film reduce the surface temperature of the steering wheel by approximately 10 degrees Celsius. S-LEC™ Solar Control Films incorporated in compact cars have experienced a 3% increase in fuel economy while using the air conditioning during a traffic jam.

S-LEC™ Solar Control Film shields the auto cabin from heat, decreasing the burden on air conditioning to cool the vehicle.S-LEC™ Solar Control Film shields the auto cabin from heat, decreasing the burden on air conditioning to cool the vehicle.


Solar control film mitigates heat without affecting the transmission of radio frequencies

S-LEC™ Solar Control Film allows most radio frequency bands to pass freely, unlike traditional heat-reflecting glass with a metallic coating. S-Lec's Solar Control Reflecting and Absorbing Films allow drivers and passengers to remain connected while on the go. These technologies also enable the convenient use of Electronic Toll Collection (ETC) devices without any interference.

S-LEC™ Solar Control Film shields the auto cabin from heat, decreasing the burden on air conditioning to cool the vehicle.