Medium Diffusion
Medium Diffusion LED Diffuser Sheets are the workhorse of modern lighting, achieving the perfect equilibrium between light output and glare control. By utilizing high-quality light-scattering agents embedded within the polymer matrix, these sheets transform discrete LED points into a soft, continuous glow while maintaining a high lumen-per-watt ratio. Optimal choice for applications requiring a balance of visual comfort, high light transmission, and a sophisticated satin-matte finish.
- Satin-Matte Finish: Features a sophisticated surface texture that minimizes external reflections and resists fingerprints and scratches.
- Color Neutrality: Engineered to ensure that the Correlated Color Temperature (CCT) of your LEDs remains consistent without shifting toward yellow or blue.
Certifications
Products Comparison
| Product Code | Material | Thickness mmin | Light Transmission | Fire Rating | Key Features | Thickness In mmin |
|---|---|---|---|---|---|---|
| S75* | Polyster (PS) | 1.2 & 1.5 | 75% | UL94 V2 | 0.047 & 0.059 | |
| Plexi75 Silk | Acrylic (PMMA) | 1.2 & 1.5 2.0 | 75% | UL94 HB | 0.047, 0.059 & 0.078 | |
| Plexi75 Frost | Acrylic (PMMA) | 1.2 & 1.5 2.0 | 75% | UL94 HB | 0.047, 0.059 & 0.078 | |
| S80* | Polyster (PS) | 1.2 & 1.5 | 80% | UL94 V2 | 0.047 & 0.059 | |
| Plexi85 Silk | Acrylic (PMMA) | 0.8 1.0 1.2 1.5 2.0 | 85% | UL94 HB | 0.002 0.003 0.047 0.059 0.078 | |
| Poly80* | Polycarbonate (PC) | 1.5, 2.0 & 3.0 | 80% | UL94 HB | 0.047, 0.059 & 0.118 | |
| S86* | Polyster (PS) | 1.2 & 1.5 | 86% | UL94 V2 | 0.047 & 0.059 |
(*) Recommended to be used with Light Guide Plates (LGP)
Optical Performance & Diffusion
More Information
Applications
They have light-scattering additives, allowing partial light passage while softening intensity. 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.
Available Widths and Lengths
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
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 (up to 1300x1300mm)
- 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.
Saw cutting capability: Up to 3050mm long and >30mm wide.
Tolerances:
L：±1mm
W：+0.6 / -0mm (Unilateral Plus) or +0 / -0.6mm (unilateral minus)
Materials: Comparison of PMMA, PC, and PS
This table helps you understand key differences at a glance, so you can pick the best material.
| Property / Feature | PMMA (Acrylic) | PC (Polycarbonate) | PS (Polystyrene) |
|---|---|---|---|
| Light Transmission | Very high | High | High |
| Impact Resistance | Low – brittle, can crack under stress | Very high – shatter-resistant | Low – brittle |
| Heat Resistance (Continuous Use) | 80–90°C | 120°C | 70°C |
| Maximum Short-Term Heat | ~100°C | ~135°C | ~80°C |
| UV Resistance / Weathering | Good (can yellow over long-term) | Moderate UV stability (However we add UV stabilizer) | Fair (Prone to yellowing)However we add UV stabilizer. |
| Flammability / Safety | Moderate (UL94 HB) | Better (UL94 V-2/V-0 with additives) | Moderate (UL94 HB) |
| Chemical Resistance | Good (resistant to mild acids/alkalis) | Excellent – resists most chemicals | Poor – sensitive to solvents |
| Weight / Density | 1.18 g/cm³ | 1.2 g/cm³ | 1.05 g/cm³ |
| Processing / Fabrication | Thermoforming, laser cutting, CNC. | Good for thermoforming, no laser cutting, CNC. | CNC. |
| Cost | Medium | High | Low |
| Durability / Lifespan | Moderate – good indoor use | Very high – suitable for harsh/industrial environments | Fair – medium-term indoor use |
| Common Applications | Office LED panels | Industrial/warehouse lighting, outdoor luminaires, impact-prone areas | Cost sensitive projects |
Product Tolerances
The three materials — PMMA, PC, and PS — exhibit comparable tolerance levels.
| Property | Value |
| 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
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.