LED Light Diffuser Made of Polycarbonate Plastic

Best Light Diffuser Solution by Polycarbonate Plastic

UVPLASTIC™ Light Diffuser and non-glare light diffuser sheets are made of polycarbonate plastic, which is mainly used as the cover protection for downlights, panel lights, advertisement billboards, the light covers of the printed circuit board, office lamps, kitchen lights, and fluorescent lights. It can scatter light spots equably on the surface, then, you can get soft and comfortable light rays. UVPLASTIC™ Polycarbonate Light Diffuser is an efficient and excellent light diffuser material, the thicknesses are from 0.8 mm to 5mm, it is also known as “LED Light Diffuser“, “Polycarbonate Diffuser“.

UVPLASTIC provides a high-quality reflection film, which is made of polycarbonate plastic, the thickness ranges from 0.2mm to 0.4mm, which offers great light reflection capability and works well at temperatures between -40 and 120 degrees. Reflection film is also one of the main parts of LED Lights. Otherwise, UVPLASTIC developed diffuser film for displayers, LED screens, mobile phone screens, membrane switches, etc. It is also made of high-quality polycarbonate plastic. The thickness ranges from 0.06mm to 0.8mm.

Compared with the PMMA diffuser, the polycarbonate diffuser offers higher impact resistance, better flame retardance, and dimensional stability in a large temperature from -40 °C to 120 °C. Therefore, It is the right material for the LED lamp, LED sign, architectural lighting system, elevator lighting system, railcar lighting system, etc. Otherwise, Polycarbonate Diffuser Sheet/Film is also the right choice for industrial applications including electron industry, machine vision system, and medical device inspection.

With more than 15 years of experience in manufacturing polycarbonate diffusers, UVPLASTIC has grown to be a leading manufacturer of Light Diffuser Sheet in China and provides light diffusers with custom size, machining service, and OEM service for more than 1200 clients from more than 40 countries.

UVPLASTIC™ Light Diffuser Specification

Product Range

ModelProduct NameStandard ThicknessLuminousness or Reflection (%)Remark
UVFPC-DILight Diffuser Sheet0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 2mm, 3mm, 4mm, 5mmFrom 60% to 85%For Indoor Use Only, Packaged as Roll or Panel
UVFPC-DIULight Diffuser Sheet0.8mm, 1mm, 1.2mm, 1.5mm, 2mm, 3mmFrom 75% to 85%For Indoor or Outdoor Use, Packaged as Panel
UVFPC-TDILight Diffuser Film0.06mm, 0.08mm, 0.1mm, 0.125, 0.15, 0.2mm, 0.25mm, 0.3mm, 0.4mmFrom 80% to 90%Packaged as Roll
UVFPC-RFLight Reflector0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mmFrom 94% to 97%
UVFPC-NGNon-glare Diffuser Panel0.5mm, 0.8mm, 1mm95%

Surface Type

Surface CodeSurface Description
0Polished Surface
1Fine Matte Surface
2Matte Surface
3 Frosted surface

Polished Surface and Frosted Surface

Product CodeThickness (mm)Luminousness (%)Haze (%)Surface TypeStandard Size (mm)
DI-0360-5000.5mm60±2%95±2%Polished/Frosted1220×2440 mm
DI-0380-10001mm80±2%95±2%Polished/Frosted1220×2440 mm
DI-0380-12001.2mm80±2%95±2%Polished/Frosted1220×2440 mm
DI-0380-15001.5mm80±2%95±2%Polished/Frosted1220×2440 mm
DI-0380-20002mm80±2%95±2%Polished/Frosted1220×2440 mm
DI-0380-30003mm80±2%95±2%Polished/Frosted1220×2440 mm
DI-0380-40004mm80±2%95±2%Polished/Frosted1220×2440 mm

Matte Surface and Frosted Surface

Product CodeThickness (mm)Luminousness (%)Haze (%)Surface TypeStandard Size (mm)
DI-2360-5000.5mm60±2%95±2%Matte/Frosted1180×1180 mm
DI-2370-8000.8mm70±2%95±2%Matte/Frosted1220×2440 mm
DI-2380-10001mm80±2%95±2%Matte/Frosted1220×2440 mm
DI-2380-12001.2mm80±2%95±2%Matte/Frosted1220×2440 mm
DI-2380-15001.5mm80±2%95±2%Matte/Frosted1220×2440 mm
DI-2380-20002mm80±2%95±2%Matte/Frosted1220×2440 mm
DI-2380-30003mm80±2%95±2%Matte/Frosted1220×2440 mm
DI-1380-50005mm80±2%95±2%Fine Matte/Frosted1220×2440 mm

High Luminousness (Matte Surface and Frosted Surface)

Product CodeThickness (mm)Luminousness (%)Haze (%)Surface TypeStandard Size (mm)
DI-2385-8000.8mm85±2%95±2%Matte/Frosted1220×2440 mm
DI-2385-10001mm85±2%95±2%Matte/Frosted1220×2440 mm
DI-2385-12001.2mm85±2%95±2%Matte/Frosted1220×2440 mm
DI-2385-15001.5mm85±2%95±2%Matte/Frosted1220×2440 mm

Matte Surface and Frosted Surface

Product CodeThickness (mm)Luminousness (%)Haze (%)Surface TypeStandard Size (mm)
DIU-2375-5000.5mm75±2%95±2%Matte/Frosted1220×2440 mm
DIU-2385-8000.8mm85±2%95±2%Matte/Frosted1220×2440 mm
DIU-2385-10001mm85±2%95±2%Matte/Frosted1220×2440 mm
DIU-2385-12001.2mm85±2%95±2%Matte/Frosted1220×2440 mm
DIU-2385-15001.5mm85±2%95±2%Matte/Frosted1220×2440 mm
DIU-2375-20002mm75±2%95±2%Matte/Frosted1220×2440 mm
DIU-2375-30003mm75±2%95±2%Matte/Frosted1220×2440 mm
Product CodeThickness (mm)Luminousness (%)Haze (%)Surface TypeStandard Size (mm)
TDI-0190-2000.2mm90±2%95±2%Polished/Frosted1220×600 mm
TDI-0190-3000.3mm80±2%95±2%Polished/Frosted1220×600 mm
TDI-0190-4000.4mm80±2%95±2%Polished/Frosted1220×1220 mm
Product CodeThickness (mm)Reflection (%)Surface TypeStandard Size (mm)
RF-1294-2000.2mm94%Fine Matt/Matt1220×2400 mm
RF-1294-2500.25mm94%Fine Matt/Matt1220×2400 mm
RF-1294-3000.3mm94%Fine Matt/Matt1220×2400 mm
RF-1294-3500.35mm94%Fine Matt/Matt1220×2400 mm
RF-1294-4000.4mm94%Fine Matt/Matt1220×2400 mm
Product CodeThickness (mm)Light Transmittance (%)Haze (%)Surface TypeStandard Size (mm)
NG-2390-5000.5mm95±2%70±2%Special Frosted Surface1180×1180 mm
RF-1294-8000.8mm95±2%70±2%Special Frosted Surface1220×2400 mm
RF-1294-800V0.8mm95±2%70±2%Special Frosted Surface1220×2400 mm
RF-1294-10001mm95±2%70±2%Special Frosted Surface1220×2400 mm
RF-1294-1000V1mm95±2%70±2%Special Frosted Surface1220×2400 mm

Physical Properties

Physical PropertiesTesting MethodUnitValue
Specific GravityD-792g/cm31.2
Water Absorbing Capacity0.3%ASTM D570
Elongation at BreakD-638%>100
Coefficient of Linear Thermal ExpansionD-696mm/m °C0.065
Tensile Modulus of ElasticityD-638MPa2400
Flexural StrengthD-790MPa100
Thermal ConductivityC-177W/m K0.21
Tensile Strength at YieldD-638Mpa or N/mm²>60
Tensile Strength at BreakD-638MPa or N/mm²>65
Deflection Temperature (264 psi load)ASTM D648°F/°C275/135
Vicat Softening PointASTM D1525°F/°C284/140
Maximum Continuous Service Temperature°F/°C190/87
Maximum Discontinuous Service Temperature°F/°C210/98
Light transmittanceD-1003%65-85

Testing Method Notes:

  • The default third-party testing organization is SGS;
  • Other testing methods are acceptable besides ASTM standards;

Main Benefits of Light Diffuser/Film and Reflection Film

  • Incomparable Impact Resistance: Polycarbonate Diffuser is 25 times stronger than Plexiglass Diffuser, it is an unbreakable light diffuser material;
  • By using high-quality polycarbonate and light-diffusing additives, the light diffuser panel offers outstanding optical properties;
  • UVPLASTIC polycarbonate led diffuser panel has more brightness, for great energy efficiency;
  • Polycarbonate Diffuser Panels can be formed into complex shapes such as curved light diffusers. Otherwise, it is easy to cut, drilled, bent carved without breaking;
  • Outstanding flammability characteristics;
  • Easy to cut and mold to any shape, UVPLASTIC also provides Machining service;
  • Can be used outdoors;


  • Mini LED Screen;
  • PHUD Diffuser;
  • Car display;
  • Lighting Fixtures;
  • LED Light Cover;
  • Billboard or Advertisement Board;
  • Lamp Diffuser Cover;
  • Kitchen Fluorescent Lights;
  • Office Light;
  • Machine Vision Systems;
  • Commercial Lighting;
  • School Lamp;
  • Fluorescent Light Diffuser;

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Frequently Asked Questions

Yes, UVPLASTIC can cut it to any size and shape according to clients’ drawings.

Yes, UVPLASTIC can thermal form LED light diffuser.

Yes. Polycarbonate diffuser is the best diffuser panel for LED panel light, the popular thicknesses are 0.5mm, 0.8mm, 1mm, 1.2mm, and 1.5mm. Of course, you can find other diffuser panels, such as PS diffuser, PMMA diffuser, etc. But polycarbonate diffuser offers better impact resistance and a longer lifespan.

Yes, the main material of UVPLASTIC Plastic Light Diffuser is polycarbonate, which is 250 times stronger than glass, 25 times stronger than acrylic, it is virtually unbreakable.

Yes, we will coat the UV layer, which can protect the polycarbonate light diffuser sheet from yellowing over time.

Yes. What we can provide is not only the high-quality polycarbonate light diffuser sheet but also the machining service.

The main differences are:

  • Impact resistance: Polycarbonate is 25 times stronger than acrylic;
  • The hardness of surface: acrylic offers better surface hardness than polycarbonate;

It will depend on the application, if you have a high requirement for impact resistance, the polycarbonate diffuser will be better.


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