BMW offers heat-reflecting glass using plastic interlayers

In a world first, BMW Group has introduced innovative heat-reflecting laminated glass technology into its new 5 and 7 Series vehicles. The new heat-reflecting climate comfort glass helps reduce intern…

In a world first, BMW Group has introduced innovative heat-reflecting laminated glass technology into its new 5 and 7 Series vehicles. The new heat-reflecting climate comfort glass helps reduce internal air temperature in a stationary car by 5 degrees C and lowers surface temperature of seats and storage areas by up to 10 degrees C. The glass is used on the rear windscreen and incorporates more than 500 plastic layers, each one only 0.00001 mm thick, which are embedded in the glass. The layers reduce heat build-up in the interior of the car by reflecting the sun“s infrared rays. Robert Bailey-McEwan, Managing Director, BMW Group Middle East said that the technology is especially beneficial to customers in the Middle East where temperatures can reach very high levels and BMW were confident that customers would appreciate the comfort benefits delivered by this option. As well as improving passenger comfort, the technology also helps fuel economy and noise reduction by putting less pressure on the air-conditioning, which can provide adequate cooling at a lower setting from the start of the journey. The new technology only uses glass and plastic; previously, metal thin film systems were used, with the disadvantage that the metallic interlayers affected the reception of mobile telecommunications equipment. This new glass was jointly developed by BMW Group, 3M and Saint-Gobain Sekurit, Germany.