Best Light Diffuser Sheet Made by Polycarbonate Plastic

Polycarbonate Light Diffuser Sheet Introduction

Polycarbonate Light Diffuser Sheet is the best plastic light diffuser, which is mainly used as the cover of the LED Light, DIY light, office lamp, kitchen light, fluorescent light. Polycarbonate Light Diffuser Panel 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 0.5mm to 6mm, it is also known as “LED Light Diffuser“, “Polycarbonate Diffuser“.

Otherwise, UVPLASTIC also developed opal and colored light diffuser panels, and polycarbonate LED Diffusers with the matte surface, texture polycarbonate diffuser. The thickness ranges from 0.8mm to 6mm. Otherwise, UVPLASTIC can provide polycarbonate diffuser sheets with customized colors, customized sizes, and customized shapes.

UVPLASTIC is the leading manufacturer of Light Diffuser Sheet in China, and we also provide the machining service, OEM Service. Today, we are so honored to provide high-quality Polycarbonate Diffuser Sheets to more than 700 clients all over the world.

Polycarbonate Diffuser Sheet Specification

Product Description

Product NamePolycarbonate Light Diffuser Panel, LED light diffuser, polycarbonate Diffuser
Raw materialHigh-quality Polycarbonate
SurfacePolished surface or frosted surface
Standard ColorWhite, Cool White, Custom Color
Thickness0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm
Standard Width930mm, 1220mm, Custom Width
Standard Length1830mm, 2440mm, Custom Length
Working TemperatureFrom -40 degrees centigrade to 120 degrees centigrade
UV Protective LayerOptional
Anti-fog FunctionOptional
Fire RatingV2/V0 according to UL94

Physical Properties

Physical PropertiesTesting MethodUnitValue
Specific GravityD-792g/cm31.2
Water Absorbing Capacity0.3%ASTM D570
Mechanical PropertyTesting MethodUnitValue
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:

  • Default third-party testing organization is SGS;
  • Other testing methods are acceptable besides ASTM standard;

Products Range

UVFPC-DI-1The polished surface on one side, the frosted surface on another side
UVFPC-DI-2The frosted surfaces on two sides

Color Range

White, Cool White, Custom Color


  • Lighting Fixtures;
  • LED Light Cover;
  • Billboard or Advertisement Board;
  • Lamp Diffuser Cover;
  • DIY Light Diffuser;
  • Kitchen Fluorescent Lights;
  • Office Light;
  • Machine Vision Systems;
  • Commercial Lighting;
  • School Lamp;
  • Fluorescent Light Diffuser;

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Main Benefits of Polycarbonate Diffuser Sheet

  • 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 provide fabrication service;
  • More than 10 years of lifespan;

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Frequently Asked Questions

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. The warranty is 10 years, normal lifespan is more than 15 years.

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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