1. Good sound insulation effect 2, strong impact resistance 3, good weather resistance 4, easy processing 5, light weight 6, high transparency 7, anti bird impact

The noise reduction principle of the sound screen board is sound reflection rather than sound absorption. After testing, the 15mm and 20mm boards can reduce noise by 25 and 36 decibels, respectively. The acrylic sound screen panel has a light transmittance of up to 93% (transparent board), which is much higher than the transparency of glass, fully reducing the driver's sense of spatial oppression, and meeting the needs of passengers in the car for transparency in the view outside the window, allowing them to enjoy the scenery along the line.

Acrylic is a plastic polymer material. When selecting materials, it is necessary to choose acrylic sheets that are brand new and have relevant performance parameters that meet the requirements of the national standard GB/T 7134-2008. Otherwise, some performance and weather resistance cannot be guaranteed. Under normal usage conditions, the fading is not significant within three years (except for specially designated indoor color boards). The performance parameters of the new acrylic material are shown in the following table:

• Performance Project
  Technical Parameter
  Notes
• Thickness tolerance/mm
  +0.5
  4-5mm
• Tensile strength/Mpa
  ≥70
• Tensile modulus of elasticity/Mpa
  ≥31001
• Rockwell hardness/M scale
  ≥98
• vicat/C
  ≥105
• Flame retardant grade
  B2-E
• Elongation at break/%
  ≥4
• After 10 years of use, the transmittance decreases/%
  ≤10
  Completed 10000 hours of rapid aging test, equivalent to 20 years outdoors