5.8*2.1m Polycarbonate Hollow Sheet - Yellow/Transparent/Blue/Gray

Key Advantages

• 5.8×2.1M dimensions: Large sheet size reduces the number of joints
• Four color options: Transparent (highest light transmittance), Yellow (warm light), Blue (cool tone), Gray (neutral shading)
• High impact resistance: Approximately 200 times standard glass, 8 times acrylic sheet
• Lightweight: Approximately 1.2-1.8Kg/m² (4mm thickness), reducing structural load requirements
• Thermal insulation: Hollow structure reduces heat transfer with U-value of 3.0-3.5W/m²·K
• Sound insulation: Hollow structure provides approximately 15- 20 dB noise reduction
• UV resistance: UV-coextruded surface layer prevents yellowing and material degradation

Product Features

Application Scenarios

• Greenhouses (skylights and side walls)
• Sunrooms (roofing and vertical glazing)
• Carports and awnings (residential, industrial, commercial)
• Factory skylights (industrial building roof lighting)
• Partitions and screens (interior light-transmitting dividers)
• Agricultural livestock and aquaculture sheds
• Bus shelters and walkway canopies
• Eco-restaurants and landscape skylights

Frequently Asked Questions

Q1: How to choose between transparent, yellow, blue, and gray sheets?
Transparent sheets offer the highest light transmittance, suitable for applications requiring maximum daylight (greenhouses, factory skylights). Yellow sheets provide warm-toned light with high transmittance, suitable for sunrooms and eco-restaurants to reduce light intensity harshness. Blue sheets provide cool-toned light, suitable for applications requiring heat control (carports, awnings). Gray sheets balance light transmission with shading, suitable for glare reduction (public awnings, commercial plazas).

Q2: How are the sheets installed?
Secure sheet edges using aluminum U-channels or dedicated fasteners. Allow thermal expansion gaps (3-5mm per meter of sheet length). Screw holes must be at least 2cm from sheet edges to prevent stress cracking. Use self-tapping screws with EPDM sealing washers; Avoid over-tightening.

Q3: Can the sheets be cold-bent during installation?
Yes. PC hollow sheets can be cold-bent with a minimum bending radius of 175 times sheet thickness. For example, a 6mm thick sheet has a minimum bending radius of approximately 1050mm. Bend along the rib direction (the long dimension); Transverse bending is not recommended.

Q4: How effective is the UV protection?
The sheet features a UV-coextruded layer (thickness ≥ 50μm) on the surface, effectively preventing yellowing and material degradation from UV exposure. Ensure the UV-coated side faces outdoors (typically indicated by labeling or protective film marking); The non-UV side faces indoors.

Q5: Is the product prone to brittleness at low temperatures?
PC material maintains good impact resistance at temperatures down to -40°C without becoming brittle. Suitable for cold northern regions.

Q6: How are the sheets cleaned and maintained?
Clean with water or a neutral cleaner using a soft cloth. Avoid hard brushes, steel wool pads, or abrasive cleaners. Avoid organic solvents (alcohol, acetone, benzene).

Precautions

• Verify that the support frame is level and secure before installation; Purlin spacing not exceeding 80cm (4mm thickness) or 100cm (6mm and above)
• Storage requirements: Store flat on dry, level ground with stack height not exceeding 1 meter. Avoid direct sunlight and heavy pressure. Keep protective film on until installation to prevent surface scratches
• Seal sheet edges with aluminum U-channels or dedicated fasteners to prevent moisture and dust from entering hollow cavities
• Keep protective film on during installation; Remove after completion. Peel film at a 45° angle
• Pre-drill holes (drill bit diameter 0.5-1Mm larger than screw diameter) to allow thermal expansion. EPDM washers should be snug without over-compression
• Allow thermal expansion gaps: 3-5mm per meter of sheet length; 6-10Mm between adjacent sheets
• Use dedicated hollow connecting strips or aluminum battens for horizontal sheet connections
• Seal openings (skylights, vents) with sealant for waterproofing
• Prevent direct contact between sheets and concrete or metal dust to avoid chemical corrosion
• Inspect color and light transmittance consistency across multiple batches before large-scale installation
• Handle carefully during transport to avoid surface scratches or edge damage