For example, the technology that gives a color to a top shade of a vehicle's windshield is based on a partially three-layered structure in which a tinted resin layer is bonded between two transparent resin layers. By adjusting the thickness of the center part of the tinted layer, the color of the tinted part gradually becomes lighter toward its end.
Furthermore, our Sound Acoustic Interlayer Film, which has begun to be widely used for architectural and automotive uses, has a sound control resin layer between two normal resin layers. This sound control layer gives the interlayer film high sound control property while the film itself maintains handling easiness and quality similar to normal interlayer films.

In Solar Control Interlayer Film which marketing was started in 2002, fine particles that shield Infra Rad rays are distributed. To maintain the desirable functions of interlayer films such as transparency, this fine-particle distribution technology is effectively applied.

A major function that gives S-LEC film a quality advantage is high moisture resistance. If moisture resistance is low, adhesive strength becomes deteriorated in high humidity, and finally the interlayer film may come off from the glass pane that does not function as laminated glass anymore. For a long time, Sekisui have been acknowledged an interlayer film supplier for Japanese automobile industry that requires rigorous quality. And we have patented this adhesive strength adjustment technology to ensure stable adhesive strength of interlayer films.