Leading Four Wall Polycarbonate Sheet Supplier In China

Four wall Polycarbonate Introduction

Four Wall Polycarbonate Sheet is significantly lighter than glass but stronger, more flexible, and more impact resistant. Therefore, it is a versatile roofing material, the color can be transparent and translucent. Normally, the co-extruded UV protective layer(s) is/are co-extruded on one or both sides, therefore, it can withstand the rigors of daily abuse in an outdoor environment for more than 10 years or 15 years.

It has four walls and creates three parallel insulation channels. This design adds both impact toughness and the ability to support the large weight. Meantime, four wall polycarbonate sheet offers preferential thermal insulation property. Four wall polycarbonate sheets are widely used for roofing, facade system, and the partition wall between rooms.

UVPLASTIC is one of the leading manufacturers of four-wall polycarbonate sheets in China. With more than 15 years of experience in the polycarbonate plastic field, we provide standard four-wall polycarbonate, meantime, provide custom sheets. Today, we are providing high-quality products to more than 600 clients in 40 countries.

Product Specification About Four Wall Polycarbonate

Products Range

UVMPC-FO Four wall polycarbonate is one member of multiwall polycarbonate, the thickness is from 8mm to 20mm.

UVMPC-FO-U1Standard four-wall polycarbonate sheet with co-extruded UV protective layer on one side;
UVMPC-FO-U1AStandard four-wall polycarbonate sheet with co-extruded UV protective layer on the outside, the anti-fog coating on inside for greenhouse wall and roofing;
UVMPC-FO-U2Standard four-wall polycarbonate sheet with co-extruded UV protective layers on two sides

Standard Size

ModelThicknessU-Value (W/m²·°K)Light Transmission, clear, %Width 700 (mm)Width 1050 (mm)Width 2100 (mm)
UVMPC-FO-88 mm2.8558
UVMPC-FO-1010 mm2.1657
UVMPC-FO-1212 mm1.9856
UVMPC-FO-1414 mm1.7455
UVMPC-FO-1616 mm1.5653
UVMPC-FO-1818 mm1.450
UVMPC-FO-2020 mm1.2448

Color Options

ModelClearBronzeWhite/OpalGreenBlueCustom color

Physical Properties

Optical PropertiesTesting MethodUnitValue
Light transmittanceD-1003%>63
Tensile Strength at YieldD-638Mpa or N/mm²>60
Tensile Strength at BreakD-638MPa or N/mm²>65
Coefficient of Linear Thermal ExpansionD-696mm/m °C0.065
Thermal ConductivityC-177W/m K0.21
Elongation at BreakD-638%>100
Tensile Modulus of ElasticityD-638MPa2400
Flexural StrengthD-790MPa100
Fire ratingUL 94/V1

Default third-party testing organization is SGS

Main Benefits

  • Four Wall Polycarbonate is really lighter weight than Flat Polycarbonate Sheet;
  • Co-extruded UV protective layers on one or two sides for improved durability;
  • Easy to cut to size and install on the roof;
  • Custom size and colors are available;
  • Withstands most extreme hot and cold climates between -40°C to 120 °C;
  • Anti-condensation Coating Layer is on inside surface for greenhouse application;
  • We can provide custom machining polycarbonate service;
  • Accessories are available;


  • Commercial Greenhouse: four-wall polycarbonate sheet is thicker than the twin wall polycarbonate sheet, therefore, it is the right material for commercial greenhouse in cold regions.
  • Polycarbonate Sunroom: Four wall polycarbonate sheet offers suitable light transmittance, and excellent impact resistance, it is a suitable plastic sheet for the sunroom.
  • Stadium Roofing: With excellent impact resistance, four wall polycarbonate sheet is a good material for stadium roofing, even under storms, hailstone, heavy snowfall, sandstorms, hurricane weather, and intense ultraviolet condition.
  • Railway station roofing: Compare the polycarbonate roofing panels, four wall polycarbonate offers a better price;


Frequently Asked Questions

Yes, four-wall polycarbonate sheets are used as a greenhouse wall. And it is also the right roofing panel for the stadium, click HERE for details.

Our standard four-wall polycarbonate sheet offers UV Coating Layer on one surface. But we can provide four-wall polycarbonate sheets with the UV coating layer on two surfaces.

Four wall polycarbonate sheet is a flat sheet, all widths are available if the width is less than 2.1 meters, the length is customized, if you want to connect them together, some accessories are needed. But polycarbonate roofing panel offers standard width, but it offers joints that you can connect together, otherwise, polycarbonate roofing panel is a roofing system, it has specialized accessories.


Please tick it or can’t receive email from UVPLASTIC
Language »