... micron UV coating 4)Short delivery 5)OEM acceptable soundproof embossed PC sheet:Specifications: MaterialBayer,Lexan,TeijinWidth1220mm,1560mm,1820mm ... break: >100%14) Specific heat: 1.16J/kgk15) Soundproof index: 4mm-27dB,10mm-33dB Applications: 1) Roofing skylight ... , department store, hotel, stadium, school, hospital.2) soundproof shields on express ways.3)LED diffused, Advertising lamp boxes ...