SINHAI: Leading Polycarbonate Sheet Manufacturer in China

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SINHAI: A Leading Polycarbonate Sheet Manufacturer in China

SINHAI: A Leading Polycarbonate Sheet Manufacturer in China

SINHAI stands out as one of the largest and leading Polycarbonate Sheet Manufacturers in China. It has implemented a strict quality control system and an excellent raw material choice mechanism. The company holds certifications like ISO 9001 - 2015, CE, ROHS, and SGS, and even has its self - patent Bamboo Polycarbonate Sheet. With 3 plants, SINHAI is dedicated to providing a one - stop solution for the safe daylighting industry and glazing systems. It continuously innovates and moves forward. The main product range includes Hollow Polycarbonate Sheet, Crystal hollow PC Sheet, Solid polycarbonate Sheet, Embossed PC Sheet, Corrugated PC Sheet, and PC H/U Type Accessories. An additional plant located in Kashgar, Xinjiang, an important hub along the Belt and Road, brings added value and good services to customers due to its unique location. SINHAI offers fast delivery, a durable service life for PC sheets, reasonable prices, energy - saving features, and cost - effectiveness. It has served
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Why choose us?

Strong Quality Assurance with Multiple Certifications

Strong Quality Assurance with Multiple Certifications SINHAI ensures strict quality control using premium raw materials like SABIC material with Lotte UV resins. The company holds certifications such as ISO 9001-2015, CE, RoHS, and SGS, guaranteeing product compliance with international standards. Its self-patented Bamboo Polycarbonate Sheet showcases innovative design and durability, meeting diverse project requirements for safety and reliability.

Comprehensive Product Range and Customization Capability

Offering a wide array of products including Hollow, Crystal Hollow, Solid, Embossed, and Corrugated PC Sheets, along with PC H/U Type Accessories, SINHAI caters to various needs. With 60+ free moulds, the company supports OEM/ODM services, enabling customized solutions for different thicknesses, colors, and specifications, such as the hot-selling 8mm/10mm Bamboo PC sheets and diamond embossed corrugated sheets.

Strategic Location for Efficient Delivery and Cost Savings

Situated in Kashgar, a key Belt and Road hub, SINHAI's additional plant ensures fast delivery to Middle Asia and beyond, significantly reducing freight costs and time. This strategic location enhances supply chain efficiency, allowing the company to offer competitive pricing while maintaining quick turnaround for orders, ideal for large-scale projects worldwide.

Extensive Experience and Global Market Reach

With over 30 years of industry experience and 3 production plants, SINHAI has a proven track record in delivering one-stop daylighting and glazing solutions. Serving over 180 countries/regions, the company excels in agricultural, industrial, and commercial projects (e.g., greenhouses, roofing, sound barriers). Its technical expertise and global presence ensure reliable, innovative, and energy-saving solutions for diverse applications.

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Sinhai’s hollow polycarbonate sheets feature multi-layered air-filled structures (2–5 walls), delivering superior thermal insulation (U-values as low as 1.5 W/(m²·K)) and light transmittance (70–85%). Available in 4–25mm thicknesses, these sheets are ideal for greenhouses, roofing, and partitions, reducing energy consumption while maintaining structural integrity. The hollow design withstands snow loads up to 1.0 kN/m² and wind speeds of 110 km/h, certified to GB/T 44570-2024 and EN 16240 standards. Constructed from 100% virgin PC with dual-side UV-blocking coatings, they resist yellowing and degradation, backed by a 10-year warranty. Custom options include anti-fogging treatments and fire-retardant finishes (GB 8624 B1-s1,d0). Sinhai’s three factories ensure fast global delivery, with Kashgar supporting Middle Asian markets. Contact us for technical datasheets and project-specific quotations.

Frequently Asked Questions

Do you take special orders?

Yes , We accept customized products.
We have a factory ourselves, we are on this business for 30+ years in China
For normal polycarbonate sheet orders, we can deliver within 7 days. For orders that require cut-to-size services and thermoforming, delivery time will be extended
The fastest delivery speed.Free samples are provided for testing.We have a professional greenhouse construction team.ISO 9001:2008 CE certification quality.There are Ten polycarbonate sheet production lines.
Usually we accept T/T (30% deposit and balance against B/L copy), L/C. Other payment terms can be negotiable.

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customer evaluation

Hans Schneider
Insulated Hollow Panels for Energy-Efficient Buildings

"Sinhai’s hollow polycarbonate sheets are integral to our Berlin office’s energy strategy. The double-wall design traps air for improved insulation, cutting heating and cooling costs by 22%. The sheets’ light weight reduced structural load during renovation, and the clear finish maintains a bright workspace. A smart choice for sustainable architecture."

Sarah Thompson
Multiwall Hollow Sheets for Greenhouse Ventilation

"A flower nursery in the UK uses multiwall hollow sheets for their greenhouses, prioritizing ventilation and temperature control. The adjustable air channels in the sheets allow for natural airflow, reducing the need for fans. The UV-resistant coating has prevented yellowing over 5 years, and the sheets’ rigidity supports overhead irrigation systems."

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High-Performance Hollow Polycarbonate Sheets

High-Performance Hollow Polycarbonate Sheets

Sinhai's hollow polycarbonate sheets are designed for insulation and lightness, with double-wall or honeycomb structures (6mm-16mm thickness). They offer 80% light transmittance, UV resistance, and thermal insulation (U-value: 2.0-3.5W/m²K), suitable for roofing, greenhouses, and skylights. Made from SABIC resin with Lotte UV additives, they are impact-resistant and comply with ISO 9001:2015, CE, and EN 16240:2013. With 25+ production lines and fast Kashgar delivery, they provide cost-effective solutions for global markets.

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