
4-Wall Rectangle Structure Polycarbonate PC Hollow Sheet. Superior Thermal Insulation: 4-wall rectangle structure provides better thermal insulation than twin-wall sheets. High Impact Strength: 80 times stronger than glass and 15 times stronger than acrylic sheets. 50 Micron UV Protection: Co-extruded UV layer ensures weatherability with 10-year quality assurance. Lightweight Design: Only 1/12 the weight of glass of the same thickness for easy handling. Customizable Dimensions: Dimensions and colors can be customized to meet specific project needs. Global Certifications: Certified by SGS, RoHS, and ISO9001 for quality and safety compliance. Easy Installation: Unique design allows convenient installation without cracking or damage. Wide Application Range: Ideal for awnings, greenhouses, skylights, and building curtain walls.