SINHAI: Leading Polycarbonate Sheet Manufacturer in China

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.