• Foam core for sandwich panels
  • fiberglass PET foam panels suppliers and product description
  • 15mm-Galvanized Steel Foam Sandwich Panel Manufacturer
  • Description of PET Foam Sandwich Panel
  • Continuous fiber PET FOAM PANEL-1
  • Introduction of continuous fiber PET FOAM PANEL

    • What’s PET sandwich panels？

    PET sandwich panels are made from 100% recyclable eco-friendly materials. PET is a rigid closed-cell foam similar to XPS foam. It is typically bonded together with FRP and CFRT skins. The density of PET foam ranges from 50 to 250 kg/m³. Thicknesses range from 10 to 150 mm. It is widely used for wall panels and flooring in RVs and truck bodies.

    Composite Box is the best quality manufacturer of PET sandwiches. We offer customized production of PET sandwich panels!

    • 100% recyclable and environmentally friendly materials
    • Lightweight plastics
    • Closed-cell rigid foam
    • Waterproof
    View Catalog

    Features

    PET sandwich panel is a globally recognized 100% recyclable structural plastic core material made from foamed polyethylene terephthalate (PET). Its surface can be seamlessly laminated with continuous fiber-reinforced thermoplastics (CFRT), glass fiber-reinforced plastics (FRP), carbon fiber, aluminum sheets, or plywood to form lightweight, high-rigidity composite panels.

    PET offers outstanding properties including low weight, high strength, zero water absorption, excellent corrosion resistance, and long-term durability, even in harsh wet or marine environments. Compared to traditional timber and aluminum, it is more environmentally friendly, significantly stronger and lighter, and achieves full closed-loop recyclability, making it the superior green core material widely used in refrigerated transport, marine engineering, wind turbine blades, and modern construction.

    Fiberglass PET Foam Panels 2

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    Catalog

    Our Product
    FRP Foam sandwich Panels
    CFRT Foam sandwich Panels
    PP Honeycomb Panels
    Foam Sandwich Panels
    Truck Body&Box
    RV Camper Body

    Contact

    • info@composite-box.com
    • @topolo

    feature

    • Lightweight: PET density is as low as 50 kg/m³.
    • Strength: High-strength material, compressive strength 60-120 MPa
    • Recyclable: PET is recyclable plastic; love the environment.
    • Low water absorption: PET foam hardly absorbs water.
    • You can easily process PET board by cutting, drilling, milling, etc.

    customization

    PET sandwich panel supports customization; here are our customization options:

    ItemSpecifications
    Thickness10 mm – 150 mm
    Width≤ 3200 mm
    Length≤ 12 m
    Density25 – 50 kg/m³
    ColorWhite, Green (recycled PET)
    Skin OptionsFRP, CFRT, plywood, aluminum, carbon fiber, stainless steel, etc.
    Surface CoatingFireproof, anti-slip, anti-UV, anti-bacterial, self-cleaning, etc.
    ProcessingCNC cutting, routing, grooving, drilling, edge sealing; embedded metal/wood inserts available
    PackagingWooden pallet + corner protectors + stretch film; export-standard packaging available

    Application

    PET sandwich panels can be used in lighter and stronger applications due to their lightweight, high-strength, and non-absorbent properties. For example, in construction, dry vans, RVs, manufacturing, and housing.

    • For RVs: PET foam sandwich panels are suitable for RV wall panels, flooring, and other structural applications. They can replace wood and steel panels.
    • For truck panels: PET foam panels are suitable for manufacturing dry cargo truck bodies.
    • Horse trailers: PET foam sandwich panels are suitable for horse trailer production, offering high strength, sound insulation, and waterproofing.
    • Construction: Wall panels, floors, roofs, and partitions.
    • Manufacturing: baffles and protective plates for equipment, large packaging materials.
    • Furniture: It can be used to manufacture bedboards, headboards, tables, chairs, etc.
    • horse trailer
    • RV Solutions 300x94 1
    • Pop Up Off road RV 5
    • Slip In Refrigerated Truck Bodies 2
    • 14 ft refrigerated truck body 3

    Custom Processing

    Embedded Reinforcement Structures

    Embedded Reinforcement Structures

    To enhance strength and functionality, reinforcement materials can be embedded within composite panels. Options include plywood, aluminum alloy profiles, GRP tubes, steel structural components, and more.

    Multi Material Composite Processing

    Multi-Material Composite Processing

    We specialize in composite processing of materials such as FRP, CFRT, and foam cores, delivering superior performance while meeting diverse application requirements.

    High Precision CNC Machining

    High-Precision CNC Machining

    Advanced CNC machining centers enable high-speed precision cutting, complex contour milling, drilling, and more.

    Edge Processing 1

    Edge Processing

    Edge finishing and connector integration are performed according to specific requirements. Services include edge wrapping, chamfering and grinding, waterproofing, and embedded nuts.

    FAQ

    PET (polyethylene terephthalate) foam is a lightweight, durable, versatile material. Many industries use it. Specific applications include:

    Transportation Industry:
    PET foam sheets can make truck boxes, RVs, and cars. They reduce weight, improve fuel efficiency, and save money.

    Wind power industry:
    You can use it to produce the web and shell of wind blades, and also to make the nacelle cover. So, PET is an excellent material for wind blades.

    Marine:
    You can use it for plywood and cabin wall panels, roofs, bulkheads, etc. for ships.

    Construction industry:
    You can use it to produce wall panels for houses, roofs, etc. It can provide good support.

    The R-value of PET foam depends on its thickness and density. If it insulates well, the thermal conductivity is 0.030 W/mK at 50 mm thick. It is a very good insulator.

    PET foam is a recyclable material that is eco-friendly and has excellent properties.

    PET has excellent flame retardancy and non-toxic properties. It also has high temperature, wear, and fatigue resistance.

    The performance of PET is better than that of PVC, and it is better than the stiffness and strength of PVC.

    why choose us?

    Customer Satisfaction

    Insisting on high quality products and servers, centered around customer experience

    Quality Assurance

    We strictly control every production process to bring reliable quality assurance to our customers.

    Advanced Production Line

    The world’s top production line ensures product precision and efficiency.

    Customization

    We provide 100% customization, making orders less difficult.

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