Produced by Baoding Sinhai Sunboard Manufacturing Co., Ltd., the u-lock polycarbonate pc hollow sheet is an architectural glazing panel built around a standing-seam locking edge. It connects panels through aluminum or polycarbonate jointers without any screw penetrating the sheet surface. The result is a watertight, thermally flexible roofing and skylight system rated at 200× the impact resistance of glass, B1-grade fire classification, and 10+ years of UV weatherability through co-extruded UV coating technology.
The u-lock polycarbonate pc hollow sheet links panels with snap-in aluminium or polycarbonate jointers as opposed to typical flat hollow sheets that depend on screw-through fastening. No fastenings go through the panel face.
This construction solves two common difficulties in roofing and glazing projects: water leakage and thermal deformation. The snap-lock connection provides a continuous watertight seam and the floating construction enables each panel to expand and contract freely during temperature cycling – without stress fractures or structural damage.
It is well suited for big span roofs, skylights, facades and any application where long-term weather tightness is a concern.
| Parameter | Details |
|---|---|
| Thickness | 8 mm – 16 mm (customizable) |
| Structure | Hollow core with U-lock edge |
| Material | 100% virgin resin; SABIC or Bayer available on request |
| UV Coating | Co-extruded, 50–117 microns, single or double face |
| Impact Resistance | 200× that of glass |
| Fire Rating | B1 grade, self-extinguishing |
| UV Weatherability | 10+ years |
| Light Transmission (VLT) | 20%–80% depending on color and structure |
| Cold-Bend Radius | Minimum ~175× sheet thickness |
| Colors Available | Transparent, bronze, grey, opal, lake blue, amber, dark blue, silver, orange, yellow, or custom |
| Certifications | ISO 9001:2015, CE, RoHS, UDEM |
Impact Resistance
At 200× the impact resistance of glass, this sheet withstands hail, wind-borne debris, and demanding environments without cracking — a practical alternative to glass in industrial and commercial roofing.
Watertight Assembly
The U-lock edge eliminates fastener penetration through the panel face. Panels connect through the jointer system, keeping every seam sealed under heavy rain and wind-driven moisture.
Thermal Movement Without Damage
The floating connection allows longitudinal panel movement as temperatures fluctuate. The sheet shifts freely within the jointer rather than buckling, bowing, or developing stress cracks.
B1 Fire Rating
The sheet meets B1 fire classification and is self-extinguishing, meeting the requirements of commercial buildings and public infrastructure projects with mandatory fire code compliance.
UV Protection Layer
The co-extruded UV layer — 50 to 117 microns thick — is integrated during extrusion. It resists yellowing and helps maintain light transmittance and mechanical performance for 10+ years.
Sizing and Color Options
Available in thicknesses from 8 mm to 16 mm and ten standard colors, with custom colors accepted. Processing options include CNC cutting, drilling, cold bending, film coating, and special-shaped cutting.
Industrial Roofing and Warehouses
Because of its wind load capability and its extended span of daylighting, the standing-seam system is well suited to large manufacturing roofs. The rib that develops along the sheet length, is a feature of the interlocking seam, providing uplift resistance over surface drilled flat sheets.
Commercial Facades & Skylights
This material is utilised in shopping malls and office buildings for transparent enclosures that provide diffused natural light. With variable VLT from 20 to 80% architects may regulate indoor lighting settings without losing thermal performance.
Sports Stadiums and Transportation Infrastructure
Its cold-bending capacity – down to a radius of almost 175× sheet thickness – makes this sheet appropriate for curving stadium roofs and train station canopies where both form and structural performance matter.
Greenhouses, Canopies & Pergolas
The u-lock polycarbonate pc hollow sheet has a hollow core that provides thermal insulation to minimise heating and cooling loads. Its snaplock design also makes it easier to install for smaller-scale structures like garden canopies, pergolas and greenhouse glass.
All manufacturing batches are checked at three points: when raw material is received, throughout production, and before shipping.
Raw Material Verification – Only virgin resin, 100% is allowed. SABIC products and Bayer materials are accessible for jobs needing traceable, high quality input.
UV Layer Uniformity Test – Microscopic thickness measurement verifies that the UV protection layer matches the 50+ micron criteria over the whole width of the sheet.
Structural Integrity Tests – Compression and tension tests confirm the locking mechanism can handle simulated wind and snow loads.
Optical Testing – Light diffusion and haze tests are performed in accordance with ASTM D1003 to validate light transmission performance and the absence of internal flaws.
Weathering Simulation – QUV accelerated ageing tests measure colour stability and impact retention throughout the rated 10+ year UV weatherability term.
Baoding Sinhai supports OEM and ODM production with processing options including CNC cutting, drilling, cold bending, film coating, special-shaped cutting, and printing.
Standard production lead time is approximately 7 days. For customers in Central Asia, the Kashgar production base and local warehouse resources in Tashkent and Dushanbe support regional dispatch.
Logistics options include sea freight, road transport, and air shipment. The team handles customs clearance and cross-border documentation.
Q: How does the U-lock system handle thermal expansion?
A: The jointer allows the panel to slide longitudinally as temperatures rise or fall. The movement is absorbed by the connection, so the sheet does not buckle, bow, or develop cracks during normal service.
Q: Does installation require specialized training?
A: The snap-lock design is more straightforward than traditional screw-fix systems. Correct alignment of U-lock connectors and proper use of aluminum profiles is essential to maintain watertight performance. Xinhai provides online installation guidance and technical support.
Q: Can the sheet be cold-curved on site?
A: Yes. The sheet can be cold-bent to a minimum radius of approximately 175× its thickness. U-lock seams must run parallel to the direction of the curve for the connection to remain secure.
Q: What is the expected service life in high-UV regions?
A: The co-extruded UV layer (50–117 microns) is rated for 10+ years of UV weatherability, protecting against yellowing and significant light transmission loss in high-solar-radiation climates.
Q: What material grades are available?
A: You can choose 100% virgin polycarbonate resin, or specify SABIC or Bayer material. Custom material grades for specific performance requirements are also available on request.
Have a project to discuss with u-lock polycarbonate pc hollow sheet? Send your requirements to [email protected] and our team will follow up with pricing and technical details.
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