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FRP PU composite panels
FRP PU composite panels
FRP PP honeycomb and PU composite panel
FRP PU composite panels
FRP PU composite panels
FRP PP honeycomb and PU composite panel

FRP PU Sandwich Panel

Fiber Reinforced Plastic (FRP) PU Sandwich Panel is a type of composite structure that consists of a Polyurethane (PU) core and FRP skins. The core material provides insulation and strength to the panel while the FRP skins protect it from external forces. The combination of these materials creates a durable and lightweight panel that has a range of applications across various industries.

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Features of FRP/GRP PU Sandwich Panel

  1. Heat Insulation
    The polyurethane foam core has a closed-cell configuration, so it has extremely low thermal conductivity. It’s only 0.018 w/(m.k) which even lowder than that of XPS foam. The perfect heat insulation performance makes the FRP PU sandwich panel the most popular material for insulated applications.
  2. Lightweight but high strength
    The PU foam is a rigid foam with a low density of 80kg/m3. It’s very lightweight core material but with good stiffness.
    The FRP skin material is also low in weight but high in strength and stiffness. The bonding of the FRP face sheet with PU foam core makes the composited FRP PU sandwich panel light and strong.
  3. Good Weather Resistance
    The anti-aging film on the surface of the FRP plate makes the ultraviolet light almost completely filtered, and the panel life is expected to reach 25 years, which greatly reduces the material cost and construction cost caused by frequent replacement of the plate.
  4. Good Corrossion Resistance
    FRP is a good corrosion-resistant material, it has good resistance to atmosphere, water, acids, alkalis, salts, as well as a variety of oils and solvents. It has been applied to all aspects of chemical anti-corrosion, and is replacing carbon steel, stainless steel, wood, non-ferrous metals.
  5. Easy Installation and easy maintenance
    The FRP PU sandwich panels can be easily installed with extrusions. It’s self-cleaning surface reduce the cost of maintenance.

Specifications of FRP PU Sandwich Panel

Overall Panel Thickness From 6mm to 200mm, commonly used 15mm, 20mm, 25mm, 30mm, 50mm
TOP and Bottom Skins FRP sheet, thickness 1.5mm, 2.0mm, 2.5mm, 3.0mm, etc.
Core Material PU foam, density 32kg/m3
Surface Finish Matt smooth, glossy smooth, embossed, diamond,etc.
Panel Size Standard 4ftx8ft, customize size within 2 meters by 6 meters
Colors White, black, yellow, grey, any RAL colors.
Working Temperature  -40℃ to 120 ℃, high temperature resistance
Thermal Conductivity  0.018W/ (m.K)

Applications of FRP/GRP PU Foam Sandwich Panel

Materials Used of FRP/GRP PU Foam Sandwich Panel

  • Top skin materials: gel coated FRP sheet in different colors and finishes, white matt finish and white glossy finish are the most preferred surface.
  • Core material: PU foam. The PU foam is a high-quality, cost-effective core material, it’s closed-cell structure provides extremely low thermal conductivity making PU foam the perfect core material for insulation composite panels.
  • Back skin material: gel coated FRP sheet with or without gel coating. Customer can choose to use non-gel coated FRP sheet as bottom skin when the bottom skin is not visible after panel installation. The non-gel coated FRP sheet is relatively cheaper than gel coated FRP.

Specifications of FRP/GRP PU Foam Sandwich Panel

  • TOPBOND manufactures the FRP/GRP PU sandwich panels in various dimensions and with different surface finish.
  • We provide customization service to your specific applications. The panel thickness, length, width, color all can be tailor-made.
    Max. size of the panel we can produce is 2000x6000mm.

FRP PU sandwich panel structure

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