A polycarbonate h-section profile is a precision-extruded thermoplastic connector that joins two PC panels edge-to-edge while accommodating thermal expansion and contraction. Made from 100% virgin PC resin with a co-extruded UV-resistant layer at a standard 50-micron thickness, SINHAI's H-profile is compatible with panels from 4 mm to 20 mm thick and is available in lengths of 2.1 m, 5.8 m, and 6 m. With 30+ years of polycarbonate manufacturing experience, 3 production bases, and 25+ production lines, Baoding Sinhai Sunboard Manufacturing Co., Ltd. supplies consistent profiles for both small and large-scale projects.
In construction and glazing work, joining PC panels correctly is one of the most consequential decisions on site. A poorly fitted connector causes water ingress, panel warping, and early system failure.
The H-section profile addresses this by managing thermal movement between panels, forming a watertight junction at sheet edges, and adding structural reinforcement against wind and snow loads — all within a single extruded component.
Because the PC H-profile shares the same thermal expansion coefficient as the panels themselves, it eliminates the friction noise and stress cracking that often occur with aluminum connectors, and avoids thermal bridging at the joint.
SINHAI's H-section profiles are manufactured from 100% virgin PC resin, which ensures batch-to-batch consistency in color and mechanical performance.
| Property | Value / Standard |
|---|---|
| Material | 100% Virgin PC Resin with UV co-extrusion |
| UV Protection Layer Thickness | Standard 50 microns |
| Compatible Panel Thickness | 4 mm – 20 mm |
| Light Transmission | Up to 80–90% (varies by color and thickness) |
| Service Temperature Range | -40°C to +120°C |
| Available Lengths | 2.1 m / 5.8 m / 6 m |
| Available Colors | Transparent, Bronze, Grey, Blue |
| Flammability Standard | UL 94 V-2 |
| Optical Property Standard | ASTM D1003 |
| Quality Management System | ISO 9001:2015 |
| MOQ | 500 pcs |
| Packing | Plastic bag |
The service temperature range of -40°C to +120°C makes these profiles suitable for cold-climate greenhouses and hot rooftop installations alike.
Color consistency between sheets and connectors matters in architectural and commercial projects where the finished appearance is part of the specification.
SINHAI offers the H-profile in transparent, bronze, grey, and blue — coordinated to match the polycarbonate sheets in your order. If a specific color match is required, the production team can accommodate the request within standard scheduling.
Transparent is the most stocked color and typically carries the shortest lead time. Other colors are subject to standard production scheduling.
Various project types make use of the polycarbonate h-section profile.
Industrial Roofing and Skylights
H-profiles are used to hold panels in place across vast spans for warehouse and industrial roof applications and to provide a leak-resistant envelope under wind stress.
Greenhouses for Commercial Use
The compact footprint of the profile reduces light obstruction and allows for optimum light transmission to crops. The UV-resistant substance is also resistant to long-term dampness and agricultural chemical exposure.
Architectural Partitions & Do It Yourself Projects
The H-profile offers a low-profile junction with acoustic dampening capabilities that solid metal alternatives don’t for office partitions, corridor glazing and lightweight canopies.
Every batch of production is passed through a predetermined inspection procedure before shipping.
The procedure is ISO 9001:2015 certified and is implemented uniformly throughout the whole spectrum of SINHAI’s PC sheet and profile products. The firm is also certified with CE, RoHS and UDEM. SINHAI’s parent firm is one of the key drafting units of China’s national standard for polycarbonate sheets, which was implemented on April 1, 2025.
A few practical points determine whether the polycarbonate h-section profile performs as intended over its service life.
The UV-protected side — usually marked on the protective film — must face the sun. Reverse installation accelerates surface embrittlement.
The profile's internal clearance is designed to allow panels to slide slightly as temperatures fluctuate. Forcing a tight fit removes this movement allowance and can cause buckling in high-temperature conditions.
For curved roofing, cold-forming is possible. The minimum bending radius must not fall below 175 times the profile thickness to avoid stress cracking.
If sealant is required at the joint, use only neutral-cure silicone. Acid-based sealants will chemically attack the PC material.
SINHAI supplies sheets and profiles as an engineered system, so panel and connector dimensions, expansion coefficients, and colors are matched from the same manufacturing source. This removes compatibility uncertainty when combining components from different suppliers.
Standard transparent H-profiles are held in warehouse stock. Custom cutting — for example, 5 m lengths cut from 6 m stock — is available on request. Bulk orders are also supported.
Q1: What panel thicknesses does the H-profile accommodate?
A: The H-profile is available to match panel thicknesses from 4 mm to 20 mm. Confirm your panel spec when placing an order and the team will identify the correct profile size.
Q2: Is blue available as a standard color?
A: Yes. Blue is one of the four standard color options alongside transparent, bronze, and grey. Color matching to panels ordered from SINHAI is also available.
Q3: Can profiles be cut to non-standard lengths such as 5 m?
A: Standard stock comes in 6 m lengths. A cutting service for non-standard lengths is available — specify the required length when placing your order.
Q4: Is stock available for prompt shipment?
A: Transparent H-profiles are a regular, high-volume stock item. Other colors may require a production lead time; confirm availability when you place your enquiry.
Q5: How does the profile manage thermal expansion?
A: The profile's internal clearance allows panels to move as temperatures shift between -40°C and +120°C, preventing buckling, cracking, and the friction noise associated with aluminum connectors.
Q6: Why use SINHAI profiles with SINHAI sheets?
A: Sheets and profiles manufactured together share consistent tolerances, matched colors, and the same thermal expansion coefficient, reducing the variables that lead to joint failure over time.
For orders, samples, or custom quotes on polycarbonate h-section profile requirements, reach out at [email protected] — we're ready to help.
⭐⭐⭐⭐⭐ · August 12, 2026
Central Asia - Uzbekistan Focus (Customization & UV Resistance)
Impressive customization capabilities! We ordered the customized Double‑wall Narrow Grid sheets with Double Circular Edges for our recent urban project in Tashkent. The fit and finish are exceptional. Most importantly, the use of high‑quality 3R virgin raw materials provides the thermal stability and UV protection needed for the intense Uzbek sun. A top‑tier partner for Central Asian infrastructure.
⭐⭐⭐⭐⭐ · July 25, 2026
South America - Corrugated Selection (Volume & Patent)
The best selection of corrugated profiles in the market. Having access to 70+ free molds saved us significant tooling costs. We are extremely pleased with the Trapezoidal 1000 and the 1060 Wave/Trapezoidal sheets in Bronze and Yellow; there is zero color deviation across the entire batch. Furthermore, their Patented Reed Sheets have given our architectural projects a unique, high‑end texture that no other supplier can offer.
⭐⭐⭐⭐⭐ · June 18, 2026
Southeast Asia - Solid Sheet (Durability)
Our go‑to supplier for Solid Polycarbonate Sheets. In the humid and high‑heat environment of Southeast Asia, these solid panels maintain perfect transparency and high impact resistance. The quality of the resin is evident, and the service is always efficient。