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LED Diffuser Sheets

Product Details:

  • Material Options: PMMA, PS and PC.
  • Light Transmittance Range: 55% to clear sheets.
  • Thickness Range: Standard 1.2–3 mm; custom options for the prismatic ones: 4 mm and 5 mm.
  • Sheet Sizes: Standard 1220 × 2440 mm, with maximum size up to 1250 × 3050 mm.
  • Fire Safety: Certified to UL 94 (HB, V2, V0) and TP(a) rating for selected models.
  • Surface: Silk and Frost Matte. And various opal prismatics.

Description

At Hexatron Technologies, we extrude high-performance diffuser sheets using three premium optical-grade materials: Polymethyl Methacrylate (PMMA), Polycarbonate (PC), and Polystyrene (PS). Each material is engineered to meet the unique needs of LED lighting, architectural design, displays, and industrial applications. Learn more about diffuser sheets for reaching UGR<19

Our diffuser sheets are available in standard thicknesses as well as custom thickness options. With a wide range of light transmittance levels, from opal sheets (~55% transmittance) for maximum diffusion of high-power LEDs to translucent and clear sheets (up to 94% transmittance) for maximum brightness, you can select the perfect solution for your project.

Optical Performance Categories

To simplify product selection, our diffuser sheets are classified into three optical performance categories based on light diffusion and transmittance:

Strong Diffusion

Designed for maximum glare reduction and light uniformity, strong diffusion sheets are ideal for high-power LED sources and applications requiring excellent visual comfort.

  • Typical transmittance: ~50–65%
  • Strong masking of LED hot spots
  • Optimized for UGR < 19 luminaires
  • Recommended for office, education, healthcare, and public spaces
Product CodeThickness




mmin
Transmittance
(%)
Surface FinishesMatte SurfaceLight DiffusionThickness in
mmin
S551.555Frost/Glossy
S55 matte polystyrene diffuser sheet with 55 percent light transmission and frost gloss finishS55 high quality led diffusion sheet for UG<190.059
Plexi58 Silk1.5, 2.0 & 3.058Silk/GlossyLED diffuser film Plexi58 silk acrylic with 58% light transmission and UGR<19 glare controlPlexi58 silk diffuser sheet with LED backlight 58 percent light transmission
Plexi58 Frost1.5, 2.0 & 3.058Frost/Glossy
Poly60Frost/Glossy
1.0
1.2
1.5
2.0
60High quality Poly60 polycarbonate diffuser sheet with 60% light transmission for LED lightingPoly60 polycarbonate diffuser sheet illuminated with LED, 60% light transmission, frost and glossy finish0.003
0.047
0.059
0.078
Plexi70 Silk/Textured*1.5, 2.0 & 3.070Silk/TexturedPlexi70 silk textured acrylic diffuser sheet with 70% light transmission with UGR<19 glare reductionPlexi70 silk textured diffuser sheet with LED backlight 70 percent transmission
Poly70*Frost/Glossy
0.8
1.0
1.2
1.5
2.0
3.0
70Poly70 polycarbonate diffuser sheet with 70% light transmission for LED lighting, UGR19Poly70 polycarbonate diffuser sheet with LED backlight, 70% light transmission, frost and glossy finish0.002
0.003
0.047
0.059
0.078
0.118
S70*1.0, 1.2 & 1.570Frost/Glossy
S70 matte polystyrene diffuser sheet with 70 percent light transmission and frost gloss finishS70 matte polystyrene diffuser sheet illuminated with LED, 70% light transmission0.003, 0.047 & 0.059

Medium Diffusion

A balanced solution offering uniform light distribution while maintaining higher brightness compared to strong diffusion options.

  • Typical transmittance: ~65–80%
  • Reduced LED visibility with improved efficiency
  • Suitable for general lighting and architectural applications
  • Ideal compromise between comfort and output
Product CodeThickness




mmin
Transmittance
(%)
Surface FinishesMatte SurfaceLight DiffusionThickness in
mmin
S75*1.2 & 1.575Frost/Glossy
S75 matte polystyrene diffuser sheet with 75 percent light transmission and frost gloss surface finishS75 matte polystyrene diffuser sheet illuminated with LED, 75% light transmission0.047 & 0.059
Plexi75 Silk1.2 & 1.5
2.0
75Silk/GlossyPlexi75 silk acrylic LED diffuser film with 75% light transmissionPlexi75 silk diffuser sheet with LED backlight 75 percent transmission
Plexi75 Frost*1.2 & 1.5
2.0
75Frost/Glossy
S80*1.2 & 1.580Frost/Glossy
S80 matte polystyrene diffuser sheet with 80 percent light transmission and frost gloss finishS80 matte polystyrene diffuser sheet illuminated with LED, 80% light transmission0.047 & 0.059
Poly80*Frost/Glossy
0.8
1.0
1.2
1.5
2.0
80Poly80 polycarbonate diffuser sheet produced by Hexatron Technologies, featuring 80% light transmittance with silk matte or frost matte surface finishes.Poly80 polycarbonate diffuser sheet with LED backlight showing 80% light transmission and frost/glossy finish0.002
0.003
0.047
0.059
0.078
Plexi85 Silk1.5, 2.0 & 3.085Silk/GlossyPlexi85 silk acrylic diffuser sheet with 85% light transmissionPlexi85 silk acrylic diffuser sheet with LED backlight, 85% light transmission, silk/gloss surface finish
S86*1.2 & 1.586Frost/Glossy
S86 matte polystyrene diffuser sheet with 86 percent light transmission and frost gloss surfaceS86 matte polystyrene diffuser sheet illuminated with LED showing 86 percent light transmission0.047 & 0.059

High Transmission

Engineered for maximum light output, these sheets provide minimal diffusion while maintaining optical clarity.

  • Typical transmittance: up to 94%
  • High brightness with subtle diffusion
  • Ideal for signage, displays, light boxes, and decorative lighting
  • Suitable when LED spacing and optical design are already optimized
Product CodeSurface Finishes
Thickness




mmin
Transmittance
(%)
Surface ImageLight Refraction
Thickness in
mmin
Poly90 GlossFrost/Glossy1.0
1.2
1.5
2.0
90Poly90 gloss polycarbonate diffuser sheet with LED backlight.Poly90 glossy polycarbonate diffuser sheet illuminated with LED backlight0.003
0.047
0.059
0.078
Plexi90 Silk1.5, 2.0 & 3.085Silk/GlossyPlexi90 silk acrylic led diffuser sheet with 90% light transmissionPlexi90 silk acrylic diffuser sheet with 85% light transmission illuminated by LED
Plexi90 Frost*1.5, 2.0 & 3.090Frost/Glossy
S921.592Frost/Glossy
S92 matte polystyrene diffuser sheet with 92 percent light transmission and frost gloss surface finishS92 matte polystyrene diffuser sheet illuminated with LED showing 92 percent light transmission0.059
S941.594Frost/Glossy
S94 matte polystyrene diffuser sheet with 94 percent light transmission and frost gloss finishS94 matte polystyrene diffuser sheet illuminated with LED showing 94 percent light transmission0.059
Plexi94 Silk1.2, 1.5 & 2.094Silk/GlossyPlexi94 silk acrylic diffuser sheet with 94 percent light transmission high-performance material.Plexi94 silk acrylic diffuser sheet with LED backlight, 94% light transmission, silk/gloss surface finish

Material Options

  • PMMA Diffuser Sheets
    Excellent UV stability, weather resistance, and high optical clarity. Ideal for long-term indoor and outdoor use.
  • Polystyrene (PS) Diffuser Sheets
    Cost-effective solution with good diffusion performance for indoor applications.
  • Polycarbonate (PC) Diffuser Sheets
    High impact resistance and fire-rated options, suitable for demanding and regulated environments.

Surface Finishes

  • Silk Matte – Balanced diffusion with refined visual appearance
  • Frost Matte – Stronger diffusion and reduced glare

More Information

Applications

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Opal Diffusers

Made from milky white resin, excel at scattering light to eliminate hotspots and create a uniform glow. With light transmittance rates typically between 55-85%, they are ideal for applications requiring soft, diffused lighting without compromising brightness. These opal diffusers are commonly paired with high-power LEDs, especially in compact setups featuring short distances between the light sources and the diffuser surface, ensuring even illumination without hotspots. Used in:

  • Ceiling & Recessed Lights: Natural, glare-free illumination for offices, kitchens, and living rooms.
  • Wall & Pendant Fixtures: Smooth light for hotels, retail, and accent spaces.
  • Backlit Signage: Even glow for retail windows and digital boards.

Translucent Diffusers

They have light-scattering additives, allowing partial light passage while softening intensity. High-transmittance diffusers, typically achieving 85-94% light transmission, are essential in applications where maximum lumen output and energy efficiency are critical, while still requiring uniform light distribution. Below are the common applications:

  • Troffer Fixtures: In commercial buildings.
  • Industrial and High-Bay Lighting: In warehouses, factories, parking garages and tunnels.
  • Task lighting: In areas requiring focused illumination.
  • Machine vision: Essential for accurate imaging, inspection, and analysis
  • Shelf Lighting: Used in jewelry cases, cosmetic displays, or luxury retail.
  • Retail Showcases & Exhibits: Concealed LED strips for jewelry, cosmetics, or trade booths.
Diffused Micro Prismatic Sheets

By integrating micro-prism structures with opal or translucent diffusion levels, they reduce glare, improve visual comfort, and maintain high light efficiency. Widely used in:

  • Office & Commercial Lighting: Ideal for LED panels, ceiling troffers and downlights.
  • Architectural Design: Used in pendant lights, wall panels, and decorative luminaires to create modern, stylish interiors with soft diffusion.
  • Public Spaces: Perfect for airports, stations, and schools, where durable, glare-controlled lighting is essential for safety and comfort.
  • Healthcare & Laboratories: Provides bright yet gentle illumination, reducing eye strain in sensitive environments.
  • Industrial Applications: Delivers wide-area, efficient lighting for factories and warehouses.

Available Widths and Lengths

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The standard sheet width is 1220 mm, while for special requirements we can extend the extrusion width up to 1250 mm on request.

We offer standard sheet lengths of 1220 mm, 1830 mm, 2440 mm, and 3050 mm. If your project requires a different size, we can also produce custom lengths tailored to your specifications.

Custom Cutting, Machining & Fabrication

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we offer comprehensive processing solutions to deliver prismatic sheets tailored to your exact size, shape, and surface finish. From standard cutting to advanced precision machining, our services ensure your sheets meet the highest quality and functional requirements for LED lighting, signage, and architectural applications.

Available Customization Options:

  • Milling: Create steps, grooves, or custom profiles to match your design needs.
  • CNC Machining: Produce highly precise shapes, patterns, and complex features.
  • Laser Cutting: Achieve smooth edges and intricate geometries with minimal material stress.
  • Saw Cutting: Standard sizing, trimming, and efficient material preparation.
  • Bonding & Assembly: Combine multiple sheets into layered constructions for specialized applications.
  • Edge Finishing :Chamfers, bevels, and rounded edges.

Our precision processing services allow designers, engineers, and lighting professionals to achieve custom solutions tailored to any project.

Materials: Comparison of PMMA, PC, and PS

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This table helps you understand key differences at a glance, so you can pick the best material.

Property / FeaturePMMA (Acrylic)PC (Polycarbonate)PS (Polystyrene)
Light TransmissionVery highHighHigh
Impact ResistanceLow – brittle, can crack under stressVery high – shatter-resistantLow – brittle
Heat Resistance (Continuous Use)80–90°C120°C70°C
Maximum Short-Term Heat~100°C~135°C~80°C
UV Resistance / WeatheringGood (can yellow over long-term)Moderate UV stability (However we add UV stabilizer)Fair (Prone to yellowing)However we add UV stabilizer.
Flammability / SafetyModerate (UL94 HB)Better (UL94 V-2/V-0 with additives)Moderate (UL94 HB)
Chemical ResistanceGood (resistant to mild acids/alkalis)Excellent – resists most chemicalsPoor – sensitive to solvents
Weight / Density1.18 g/cm³1.2 g/cm³
1.05 g/cm³
Processing / FabricationThermoforming,
laser cutting, CNC.
Good for thermoforming,
no laser cutting, CNC.
CNC.
CostMediumHighLow
Durability / LifespanModerate – good indoor useVery high – suitable for harsh/industrial environmentsFair – medium-term indoor use
Common ApplicationsOffice LED panelsIndustrial/warehouse lighting, outdoor luminaires, impact-prone areasCost sensitive projects

Product Tolerances

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The three materials — PMMA, PC, and PS — exhibit comparable tolerance levels.

PropertyValue
Thickness±3%
Mother board Length / Width±3.0 mm
Cut-to-Size Length / Width±0.3 mm
Light Transmittance & Haze±2%

PMMA has the highest thermal expansion among the three materials. It tends to expand when it’s hot and shrink when it’s cold. To ensure a perfect fit, use our Thermal Expansion Calculator to estimate the final dimensions before installation.

Packing

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At Hexatron Technologies, we ensure our diffuser sheets are carefully packed so they arrive in perfect condition.

1. Standard Sheet Packing
  • Mother Sheets: Large sheets (up to standard extrusion sizes) are stacked on pallets or crates.
  • Final Cut / Cut-to-Size Sheets: Smaller sheets are carefully wrapped and separated with protective films or kraft paper, then bundled to avoid bending or warping.
2. Protection Methods
  • Surface Protection Film: All diffuser sheets are supplied with a removable protective film to prevent scratches and contamination.
  • Edge Guards / Corner Protectors: To prevent chipping or denting during handling and shipping.
3. Palletization & Securing
  • Sheets are stacked on pallets or crates with interleaving layers and secured with straps or stretch film to prevent movement during transit.
  • Maximum stack height is calculated based on sheet thickness and material to avoid warping or deformation. A pallet of 1.5 tons is the maximum weight.
4. Shipping & Handling Recommendations

Handling: Use gloves when removing protective film to prevent fingerprints.

Flat Storage: Sheets should be stored flat and supported evenly to maintain flatness.

Climate Considerations: Avoid prolonged exposure to extreme temperatures or humidity, especially for PMMA, to prevent dimensional changes.