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Outline
 

In these years, constructors and car makers have been designing their products paying mush attention to the efficiency of sound insulation, because residential noise and vehicle's sound control performance have come to light. Sekisui succeeded to develop a high-performance sound control interlayer film, named S-LEC Acoustic Film that also has the maximized human-safety performance of normal interlayer films. Since 1996, our Acoustic Film has been well received in the markets for architecture and automotive.

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  Technology for Our Sound Control Interlayer Film (S-LEC Acoustic Film)
 
  The sound control performance of our Acoustic Film is achieved by the three-layer extrusion technology that produces a film consists of a sound control layer (core layer) and two layers of normal interlayer film (external layers) that sandwich the core layer. With this technology, the sound control performance of this film is improved while it also maintains the other performance of normal interlayer films.

  Sound Control Performance    
 
 

In human's most audible sound range from 1000 to 4000Hz, our Acoustic Film achieves 5dB of sound control effect that is higher than those of other normal interlayer films.

*Most distinctively high sound control performance in human's most audible sound range from 1000 to 4000Hz
*5dB of sound control effect at the maximum compared with other normal laminated glass


 
 
The effect of 5dB difference in actual environment



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