Eastman's PVB Solution Awarded Seal of Recommendation from The Skin Cancer Foundation

Eastman's PVB Solution Awarded Seal of Recommendation from The Skin Cancer Foundation Saflex S, a series of polar absorbing polyvinyl butyral (PVB) interlayers, has received the Skin Cancer Foundation's Seal of Recommendation. Saflex S is the first automotive-grade PVB to receive this type of recognition. In order to receive the Seal, products need to block 99 percent or more of UVA and UVB radiation.

PVB is a key component in all laminated windshields all over the world, but it's also used in door and roof glass to block sunlight and noise. The importance of protecting people from UVA radiation has been highlighted by recent research, as fresh evidence indicates that exposure to this type of solar radiation may not only initiate, but also exarcebate the development of skin cancer. Most non-laminated tempered automotive windows can block UVB but still allow 60 percent of the sun's UVA to be transmitted to the driver and passenger's skin.

Laminated glass consists of two pieces of glass held together by PVB, forming a strong bond that tends to stay together even after breakage occurs. For decades, it has been mandated in windshields by National Highway Traffic Safety Administration and in other countries for safety reasons. However, these days most automotive side and roof windows are made of single pane tempered glass, which transmits significant amounts of UVA.

Saflex S series interlayers are also available in an acoustic version called Saflex Q Series Solar. The interlayer provides a triple service. It blocks solar UV and IR (heat), and also reduces noise that enters the vehicle through the glass. Saflex S series and Saflex Q series solar products can be used in all automotive glazing applications including the windscreen, sunroof, rear and side glass.

The Skin Cancer Foundation says that more than two million people in the U.S. are diagnosed with more than 3.5 million skin cancers every year. Every hour one person dies of melanoma, which is the most dangerous form of skin cancer, while one fifth of Americans will develop skin cancer in the course of a lifetime. Considering that on average Americans spend more than 15 hours per week in their vehicles, getting proper protection from dangerous solar radiation that comes in through the car's interfaces with the environment is crucial.

Image credit: Saflex