H-Section Joiners
Join two sheets edge-to-edge — pick the joiner to match your sheet thickness.
from $49.98ex GST
Technical Specifications
| Material | Polycarbonate (PC), light-diffusing grade |
| Appearance | Frosted |
| Light Transmission | 30–80% (grade-dependent) |
| Light Diffusion | High (uniform light spread, reduced hotspots) |
| Density | ~1.20 g/cm³ |
| Tensile Strength | ~60–70 MPa |
| Flexural Strength | ~85–95 MPa |
| Impact Resistance | Very high (virtually unbreakable vs acrylic) |
| Service Temperature | −40°C to +115°C |
| Heat Deflection Temp (HDT) | ~130–140°C |
| UV Resistance | Moderate |
| Weather Resistance | Good |
| Chemical Resistance | Good to weak acids; poor to solvents |
| Applications | LED light panels, signage, architectural lighting, ceiling diffusers |
Certifications & Downloads
Polycarbonate Light Diffuser
Polycarbonate light diffuser sheets provide superior strength, impact resistance, and light control compared to standard acrylic. At 3 mm thickness and a size of 2440 × 1250 mm, they deliver even…
$222.42 + GST
inc. GST $244.66 
High Impact Resistance
250 x Stronger than Glass
Handles Higher Temperatures
Making it ideal for LED and enclosed lighting
1 Configuration
Collect from our Gold Coast factory
9 Leda Drive, Burleigh Heads QLD 4220
Mon-Thu 7:30am-4pm, Fri 7:30am-3:30pm AEST
Pickup is from this Gold Coast site only.
2 Service add-ons
Optional finishing services - toggle any you need.
Drill holes
Optional. Add drilled holes to your piece.
Flame polished edges
Clear acrylic only - optical-grade edge finish
Pick which edges to polish.
Flame polish is only available on acrylic.
Rounded corners
Manual router - per-corner price scales with thickness
Edge profile
Rounded or 45 degree bevel - per-metre rate x thickness
A rounded edge can be at most half the sheet thickness.
Buy more, save more
Buy 5+ sheets save 5%
Buy 10+ sheets save 10%
5 · 5% 10 · 10%
$0.00 + GST
Pay
G Pay
| - - | - |
|---|---|
| Quantity | - |
| Drill holes | - |
| Flame polish | - |
| Rounded corners | - |
| Edge profile | - |
| Cutting & Setup Fee Charged once per order | - |
| Shipping | estimate above |
Australia-wide delivery Priced to your postcode
Precision Cut +/-0.5mm tolerance
Quality Assured Industry-leading
Why choose Polycarbonate Light Diffuser?
Key Benefits of Polycarbonate over Acrylic Diffusers:
- Impact Resistance: Polycarbonate is up to 250 times stronger than glass and significantly tougher than acrylic , making it ideal for high-impact or vandal-prone areas.
- Heat Resistance: With a higher softening point, polycarbonate performs better under high-temperature lighting conditions.
- Durability: Superior UV and weather resistance ensures long-term clarity and performance, even in harsh environments.
- Safety: Its shatter-resistant properties make it a safer alternative in public spaces and industrial lighting systems.
Polycarbonate Light Diffuser Sheets provide superior strength and impact resistance compared to traditional acrylic diffusers. Designed for lighting panels, skylights , and commercial fixtures, these sheets offer excellent light transmission while reducing glare and hot spots, ensuring even illumination in both indoor and outdoor environments.
Available in a range of thicknesses, patterns, and light diffusion levels, polycarbonate diffusers deliver a reliable, energy-efficient solution for modern lighting applications where strength and clarity are equally important.
Ready to order your Polycarbonate Light Diffuser?
Cut to size, precision finished and dispatched Australia-wide. Not sure which material suits your job? We'll help you choose the right one.
Frequently purchased with
Technical Specifications
| Material | Polycarbonate (PC), light-diffusing grade |
| Appearance | Frosted |
| Light Transmission | 30–80% (grade-dependent) |
| Light Diffusion | High (uniform light spread, reduced hotspots) |
| Density | ~1.20 g/cm³ |
| Tensile Strength | ~60–70 MPa |
| Flexural Strength | ~85–95 MPa |
| Impact Resistance | Very high (virtually unbreakable vs acrylic) |
| Service Temperature | −40°C to +115°C |
| Heat Deflection Temp (HDT) | ~130–140°C |
| UV Resistance | Moderate |
| Weather Resistance | Good |
| Chemical Resistance | Good to weak acids; poor to solvents |
| Applications | LED light panels, signage, architectural lighting, ceiling diffusers |
Certifications & Downloads
Frequently Asked Questions
What is a polycarbonate light diffuser?
A polycarbonate light diffuser is a translucent plastic sheet designed to spread light evenly and reduce glare or hot spots. It is commonly used in LED lighting, ceiling panels, light boxes, signage, and architectural lighting where controlled light transmission is required.
How does polycarbonate compare to acrylic for light diffusers?
Polycarbonate is significantly stronger and more impact-resistant than acrylic, making it better for high-traffic or vandal-prone areas. Acrylic offers slightly better optical clarity, but polycarbonate is preferred where durability, heat resistance, and safety are more important.
Is polycarbonate suitable for LED lighting?
Yes. Polycarbonate diffusers are widely used with LED lights due to their heat resistance, impact strength, and consistent light diffusion. They help eliminate harsh glare while maintaining good light output, even in high-temperature or commercial environments.
What light transmission options are available?
Polycarbonate light diffusers are available in various diffusion levels, typically ranging from high transmission (soft diffusion) to heavy diffusion for maximum glare reduction. Common finishes include opal, frost, and prismatic patterns, depending on the lighting effect required.
Can polycarbonate diffusers handle heat from lighting?
Yes. Polycarbonate has a higher heat resistance than acrylic, making it suitable for high-output LEDs and enclosed light fittings where heat buildup may occur. It maintains structural integrity and diffusion performance under elevated temperatures.
Need this custom cut or fabricated?
Send us your drawing (DXF, DWG, PDF, EPS, STEP) and we'll quote your Polycarbonate Light Diffuser to spec.
Applications
All applications
What you can make with Polycarbonate Light Diffuser
Acrylic Light Diffuser Panels
Opal and diffuser acrylic and polycarbonate panels for even LED light spread in troffers, signage, and ceiling installations. Cut-to-size service available.
Mining Machine Guards & Safety Screens
Heavy-duty polycarbonate and HDPE machine guards for mining equipment, crushers, conveyors, and processing plants. Impact-resistant, cut to size, and delivered Australia-wide.
Acrylic Privacy Screens
Custom acrylic and polycarbonate privacy screens cut to size for balconies, fences, offices, and outdoor living areas. Frosted, tinted, and clear options available Australia-wide.
Amusement Glass
Replacement acrylic panels for arcade, pinball, and vending machines.
Data Centre Enclosures
Polycarbonate tube and sheet enclosures for cable and sensor runs.
Air Conditioner Covers
Custom cut acrylic, polycarbonate and HDPE air conditioner covers. Screen outdoor units, protect from weather and keep airflow clear. Cut to size, shipped Australia-wide.
Boat Window Replacements
Clear Perspex replacements for boat windows, windscreens, and portholes.
Sight Glasses & Inspection Windows
Clear polycarbonate and acrylic sight glasses for tanks, hoppers, pipelines, and process equipment. Impact-resistant, cut to size with drill holes for bolted flanges.
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Read guide →Processing Services
Services available for this product
CNC Routing
Profiling, drilling, and countersinking in polycarbonate sheet.
Learn moreFabrication
Cold bending, thermoforming, and assembly of polycarbonate.
Learn moreMachined Parts
Precision polycarbonate components for guards and enclosures.
Learn moreLaser Cutting
Laser cutting for thin polycarbonate film and sheet.
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