polycarbonate sound barrier sheets

Specifications:
Thickness: 4 to 16mm 

Standard Length :6000mm   

Standard width  :1200-2100mm

Specific gravity: 1200kg/cbm
Colors: clear, blue, green-blue, greenl, brown,opal,etc.

Technical features:
Impact strength: 850J/m
Light transmission: 80%-90% for different thickness of clear color
Specific gravity: 1.2 g/cm
Coefficient of thermal expansion: 0.065 mm/m^oC

Temperature: -40^oC to 120^oC

Heat conductivity: 2.3-3.9 W/m^{2   oC}
Tensile strength: >60N/mm²
Flexural strength: 100N/mm²
Modulus of elasticity: 2,400mPa
Tensile street at break: >65mPa
Elongation at break: >100%
Specific heat: 1.16J/kg^k
Heat deflection temperature: 140^oC
Soundproof index:4mm thickness--27dB,5mm--28dB,6mm--29dB,8mm--31dB,10mm-32dB

                          12mm--34dB