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

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 multiwall polycarbonate sheets are engineered with 2–5 layered structures, creating air cavities that enhance thermal insulation (U-values as low as 1.5 W/(m²·K)) and soundproofing. Ideal for greenhouses, roofing, and partitions, these sheets offer 70–85% light transmittance with optional UV-blocking coatings (99% UV resistance) to prevent yellowing and plant damage. Constructed from 100% virgin PC, they withstand snow loads up to 1.0 kN/m² and wind speeds of 110 km/h, compliant with GB/T 44570-2024 and EN 16240 standards. Thicknesses range from 4mm to 25mm, with custom colors and anti-fogging treatments available. Sinhai’s Kashgar factory ensures fast delivery to Middle Asia and Europe, supported by ISO 9001-certified quality control. Contact us for technical specifications and project-specific solutions.

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

John Brown
Multiwall Sheets for Residential Skylights and Conservatories

"In my London home, the multiwall polycarbonate skylight keeps the conservatory warm in winter and cool in summer. The double-wall design reduces heat transfer, and the clear finish maximizes natural light. The easy-to-install system and leak-proof seals have made it a valuable addition to our home. Highly satisfied."

Amal Al-Jassim
Custom Multiwall Sheets for Unique Architectural Designs

"An eco-resort in Costa Rica used multiwall polycarbonate sheets for its domed structures. The curved sheets fit the unique architecture perfectly, providing both strength and transparency. The material’s light weight reduced foundation costs, and the UV-resistant layer ensures longevity in tropical sun. Innovative and sustainable."

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Energy-Efficient Multiwall Polycarbonate Sheets

Energy-Efficient Multiwall Polycarbonate Sheets

Sinhai's multiwall PC sheets (6mm-16mm) feature double/triple layers to reduce energy costs by up to 30%, ideal for greenhouses andFacades. With 85% light transmittance and UV-blocking layers, they resist impacts and harsh weather. Available in clear or opal finishes, they meet ISO 9001:2015 and EN 16240:2013 standards, supported by a 10-year warranty. Lightweight and easy to install, they are exported globally from Kashgar, serving 180+ countries.

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