1. Product Definition
Double-sided UV-coated PC Hollow Sheets are polycarbonate hollow sheet with a co-extruded UV-resistant protective layer applied to both sides.
2. Comparison: Double-sided VS Single-sided UV Coating
| Comparison Item | Double-Sided UV Coated PC Hollow Sheet | Single-Sided UV Coated PC Hollow Sheet |
| Protected Surface | Both two sides resist sunlight UV radiation | Only one single side has UV protective layer |
| UV Anti-aging Performance | Contains 54% more UV-resistant anti-aging ingredients; stronger weather resistance & longer service life | Less UV absorber, weak anti-yellowing & anti-brittle performance |
| Installation Convenience | No front/back distinction after peeling protective film; low installation error risk | Reverse installation will lead to rapid yellowing, aging and cracking |
| Applicable Scenarios | Places with sunlight shining on both sides all day long | Occasions only with single-sided sunlight exposure |
3. Production Technology & UV Coating Data
3.1 Core Co-extrusion Patent Technology
Adopts innovative UV+PC+UV double-sided composite co-extrusion mold design. Compared with traditional single-sided (UV+PC) production, the distributor composite structure cuts UV absorber consumption by 30%.
Production flow: PC raw material melting → UV raw material melting → multi-layer distribution fusion → sheet extrusion molding.
3.2 UV Coating Thickness Test Data
| Sheet Surface | UV Protective Layer Thickness |
| Side A | 45.59 μm (45.6 μm) |
| Side B | 31.62 μm (31.6 μm) |
Thickness can be customized
4. Complete Product Specifications
Suitable for all PC hollow sheet series, all colors customizable.
| Product Model | TK Thickness (mm) | Rib Space (mm) | Available Width (mm) | Available Length (M) |
| Twin wall | 4 | 6.5 | 2100 / 1220 / 1050 | 5.8 / 6 / 11.8 / Custom length |
| Twin wall | 6 | 6.5 | 2100 / 1220 / 1050 | Custom |
| Twin wall | 8 | 10.75 | 2100 / 1220 / 1050 | Custom |
| Twin wall | 10 | 10.75 | 2100 / 1220 / 1050 | Custom |
| Twin wall | 12 | 10.75 | 2100 / 1220 / 1050 | Custom |
| Four layer | 6 | 7 | 2100 / 1050 | Custom |
| Four layer | 8 | 7 | 2100 / 1050 | Custom |
| Four layer | 10 | 7 | 2100 / 1050 | Custom |
| Four layer | 12 | 7 | 2100 / 1050 | Custom |
| Four layer | 12 | 11 | 2100 / 1050 | Custom |
| Four layer | 16 | 11 | 2100 / 1050 | Custom |
| Honeycomb | 6 | 4 | 2100 / 1050 | Custom |
| Honeycomb | 8 | 6 | 2100 / 1050 | Custom |
| Honeycomb | 10 | 6 | 2100 / 1050 | Custom |
| Honeycomb | 12 | 6 | 2100 / 1050 | Custom |
| X Strong | 16 | 12 | 2100 / 1050 | Custom |
| X Strong | 18 | 12 | 2100 / 1050 | Custom |
| X Strong | 20 | 12 | 2100 / 1050 | Custom |
| X Strong | 25 | 12 | 2100 / 1050 | Custom |
5. Product Core Features
- 1. Raw Material Safety: Made of pure polycarbonate resin; shatterproof, formaldehyde-free, non-flammable and safe to use.
- 2. Ultra Weather Resistance: Stable performance under extreme high & low temperature; transparent surface will not fade after long-term outdoor use.
- 3. Hollow Sandwich Structure Advantage: Good heat insulation & thermal retention; lightweight material, easy installation, high cost performance.
- 4. Double-sided Full UV Blocking: Uniform UV coating on both surfaces, effectively isolate ultraviolet rays and delay aging.
6. Application Fields
- 1. Building Outdoor Engineering: Roof daylighting, rainproof entrance canopy, eave shelter, smoke exhaust window, greenhouse panels
- 2. Indoor Decoration & Furniture: Cabinet door panels, partition screens, lower door sheets, shop display backboards & shelf boards
- 3. Commercial & Other Products: Partition wall panels, double-layer window sheets, lamp covers, advertising billboards, exhibition display sheets
7. Operation Guidelines: Installation, Storage, Maintenance & Safety Warnings
7.1 Installation Standard
- 1. Screw Fixing
- • Wrong operation: Screw tightly attached to plate without expansion washer; screw inserted obliquely into sheet; over-tightened screws by electric screwdriver.
- • Correct operation: Match expansion washer to reserve thermal expansion gap; screw vertically into the plate; control screwdriver torque to avoid over-tightening.
- 2. Thermal Expansion Hole Design
Drill hole diameter should be 20%–30% larger than screw diameter to reserve expansion space for thermal expansion and contraction of PC material. - 3. Cutting Requirements
Available cutting tools: Fixed/portable circular saw with hardwood blade, short-tooth jigsaw with universal blade.
Slow feeding during cutting; prevent cutting dust from entering hollow cavities of the sheet.
7.2 Storage & Transportation Rules
- • Keep packages flat during storage and transit.
- • Avoid direct sunlight and rain soaking.
- • Do not peel surface protective film before installation to prevent scratches.
7.3 Cleaning & Maintenance Rules
- • Strictly forbid organic solvent cleaning.
- • Wipe with soft cloth + clean water; diluted neutral detergent is allowed for stubborn stains.
7.4 Safety Precautions
- 1. Forbidden to use under open flame or ambient temperature above 120°C.
- 2. Keep protective film intact until construction is fully finished.
- 3. Long-term outdoor direct sunlight may cause sheet deformation and discoloration.
- 4. Do not stack heavy goods on sheet surface.
- 5. All cut panels must be fully fixed; foam buffer pads are recommended for protection.
