Quietness greatly boosts car comfort, and how to reduce engine, road, and wind noise are major issues in vehicle design. SEKISUI has focused on the fact that noise enters through the carfs windows, leading to the successful development of the S-LEC SAF (Sound Acoustic Film) sound insulation interlayer film that dramatically increases sound insulation performance. This film is employed in cutting-edge and environmentally-friendly vehicles, as well as in a variety of other cars on the worldfs roads. |
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 S-LEC SAF sound insulation interlayer film is achieved by the three-layer extrusion
technology that produces a film consisting of a sound insulation layer (core
layer) and two layers of standard interlayer film (external layers) that sandwich
the core layer. With this technology, the sound insulation performance of the
film is improved while it also maintains the basic performance of standard interlayer
films. |
 Article:"Multi-Layer Technology for Noise Reduction" |
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. |
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*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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