... and found that glass and acrylic forces have been ruptured or broken, while the Ketelong 2UV PC Solid Sheets are not ... the prefer choice material for highway noise barriers. For example: 6mm Ketelong 2UV PC Solid Sheet’s sound insulation is 29dB ... .8mm,1.0mm,1.2mm,1.5mm,2mm,3mm,4mm,4.5mm,6mm,8mm &10mm.Standard width1220mm,1560mm,1820mm,2100mm (Can be ...