PC – Polycarbonate (optical grade)


PC DX LED or Exolon® DX (Diffusion eXellence) is a plastic diffuser sheet that combines excellent light-diffusing properties with a high level of translucency. Its properties are based on modern diffuser technology, which enables even light distribution and excellent translucency properties. Exolon® DX disguises LED light sources. It offers high-quality light distribution at a lower lighting capacity than standard light-diffusing materials. The material is also available as fire-retardant PC FR DX LED for applications such as boats and trains where self-extinguishing materials must be used. We deliver PC DX LED as sheets.

Physical properties
  Value Unit Test method
Specific gravity 1.2 g/cm3 DIN EN ISO 1183
Average molecular mass 106 g/mol
Water absorption, 24/96 h (23 °C) 0.3 % DIN EN ISO 62
Weather-resistance good
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety no
Mechanical properties
  Value Unit Test method
Modulus of elasticity 2300 MPa DIN EN ISO 527-2
Tensile strength >60 MPa DIN EN ISO 527-2
Elongation at break 6 % DIN EN ISO 527-2
Tensile strength at break >50 % DIN EN ISO 527-2
Flexural modulus 2300 MPa DIN EN ISO 178
Flexural strength 90 MPa DIN EN ISO 178
Compressive modulus MPa EN ISO 604
Compressive strength, 1%/2% MPa EN ISO 604
Impact strength (Charpy) kJ/m2 DIN EN ISO 179-1eU
Notch impact strength (Charpy) kJ/m2 DIN EN ISO 179-1eA
Notch impact strength (Izod) 80P kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) MPa ISO 2039-1
Toughness (Shore D) Sh D DIN EN ISO 868
Wear-resistance % Sand-Slurry
Coefficient of friction (against steel) μ
Thermal properties
  Value Unit Test method
Glass-transition temperature °C DIN 53765
Melting point °C DIN 53765
Operating temperature (instantaneous) °C
Operating temperature (continuous) +120 °C
Operating temperature (minimum) -100 °C
Thermal expansion coefficient, 23–60 °C 10-4 K-1 10-5 K-1 DIN EN ISO 11359-1;2
Thermal expansion coefficient, 23–100 °C 10-5 K-1 DIN EN ISO 11359-1;2
Specific heat capacity J/(g×K) ISO 22007-4:2008
Thermal conductivity 0.2 W/(m×K) ISO 22007-4:2008
Electrical properties
  Value Unit Test method
Surface resistivity DIN IEC 60093
Resistivity Ω×cm DIN IEC 60093
Dielectric strength kV/mm DIN EN 60243-1
CTI value V DIN EN 60112
Optical properties
  Value Unit Test method
Light transmittance
Refractive index
Optical errors DIN 52305/AS
Abrasion-resistance, 100 rotations with 500 g % haze ANSI Z26.1

Additional downloads

Delivery selection polycarbonate sheets
Specific gravity 1.2 g/cm3
Service temperature -100 … +120 °C
Price category €€ (€8–25/kg)

Special properties

  • excellent light diffusion
  • excellent impact strength
  • broad service temperature range
  • reusable
  • recyclable
  • resistant


electronics industry, lighting fixtures, illuminated advertising boards, trains

Standard colours


Special colours

upon special request

Premade pieces


Commonly known brands

Exolon® DX