Polycarbonate hollow sheet, also known as PC sun panel, twin-wall polycarbonate sheet, is a lightweight, high-transparency, impact-resistant hollow plastic panel. It has become the mainstream material for greenhouse roofing, carports, canopies, factory skylights, walkway shelters and architectural daylighting projects.
Thanks to its excellent combination of strength, transparency, and thermal insulation, it has become a popular alternative to glass and traditional roofing materials.
Compared with glass and traditional plastic panels, PC hollow sheet features lighter weight, better weather resistance, stronger impact resistance and excellent heat insulation. This article introduces its core features, specifications, application scenarios and selection tips, as well as our professional custom fabrication services.
1. Core Features of Polycarbonate Hollow Sheet
High Light Transmission
PC sun panel light transmittance reaches up to 80–90%, close to glass. It can diffuse soft light without dazzling glare, ideal for greenhouse and daylighting roof.
Ultra-high Impact Resistance
Impact strength is 200 times stronger than glass, hail-resistant, shatterproof and wind-resistant. It will not break under heavy snow, strong wind or hail weather.
Lightweight & Easy Installation
Only 1/15 the weight of glass, easy to transport, cut and install, no need for heavy steel frame, saving construction cost.
Excellent Weather & UV Resistance
With anti-UV co-extrusion layer on the surface, it resists ultraviolet radiation, prevents yellowing and aging, and maintains stable performance for 10–15 years outdoors.
Heat Insulation & Energy Saving
Hollow air layer provides outstanding thermal insulation effect, reducing indoor temperature difference, saving air conditioning and heating energy consumption.
Flame Retardant & Safe
It meets fire-retardant standards, self-extinguishing away from fire, non-toxic smoke, safe for public buildings and residential projects.
2. Common Specifications
- Structure: Twin-wall, triple-wall, four-wall, honeycomb polycarbonate hollow sheet
- Thickness: 4mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm
- Color: Clear, blue, green, milky white, gray, bronze
- Standard size: Custom length and width available
3. Main Applications of PC Sun Panel
- Agricultural greenhouse, planting nursery roof
- Carport, bicycle shed, courtyard canopy
- Factory building skylight, warehouse daylighting roof
- Pedestrian walkway shelter, corridor sunshade
- Stadium stands, landscape engineering daylighting
- Commercial mall atrium, balcony sun shelter
4. Advantages Over Traditional Materials
Compared to glass or acrylic:
| Feature | PC Hollow Sheet | Glass | Acrylic |
|---|---|---|---|
| Weight | Light | Heavy | Medium |
| Impact Resistance | Excellent | Poor | Medium |
| Insulation | Good | Poor | Limited |
| Installation | Easy | Difficult | Medium |
👉 Polycarbonate offers the best balance of strength, weight, and performance.
5. How to Choose the Right PC Hollow Sheet
- 4–6mm: Simple canopy, temporary sunshade
- 8–10mm: Regular carport, courtyard canopy
- 12–20mm: Greenhouse, large-span daylighting roof, heavy snow area
- Choose UV-protected grade for outdoor long-term use
- Select multi-wall / honeycomb type for better insulation and wind resistance
Professional PC Hollow Sheet Custom Service by Our Factory
We are a professional supplier and manufacturer of polycarbonate hollow sheet / PC sun panel. We supply standard size PC hollow sheets in various thicknesses and colors, and provide one-stop custom processing:
- Custom cutting to any size
- CNC routing, drilling, edge trimming
- Heat bending, arc forming for special canopy design
- Anti-UV, anti-fog and surface treatment
- Wholesale bulk supply and small batch retail
We provide stable quality, competitive factory price, fast delivery and professional technical selection suggestions. Whether you need standard PC hollow sheets for construction projects or custom fabricated parts, we can provide the most cost-effective solution.