FRP Sandwich Panels Manufacturer in China

FRP Sandwich Panels. It is a composite fiberglass material that contains fiberglass skin and foam/honeycomb/plywood core. The multi-layer composite structure makes fiberglass composite panels lighter and stronger. It replaces traditional metal composite panels in many fields.

Structure of FRP Sandwich Panels

The skin is the FRP sheet. It contains resin and fibers. The resin acts as a matrix that accounts for 30% to 40% of the total weight. The resin can be PA, PE, PP, epoxy, phenolic, etc. The GRP sheet takes glass fiber as the reinforcement. The alternatives can be carbon fiber and other non-metallic and inorganic fibers. The fiber roughly accounts for 60% to 70% of the total weight.

Its core is foam or honeycomb or plywood. You can choose from PU, PET, PVC, XPS, EPS, EPP, etc for foam core and PP or PC for honeycomb. The foam core usually performs well in heat preservation and thermal insulation while the honeycomb in high strength and impact resistance. Foam cores usually have good thermal and thermal insulation properties, while honeycombs have high strength and impact resistance, and plywood not only has high strength but is also easy to cut.

Structure of FRP Sandwich Panel

Advantages of Fiberglass Sandwich Panels

☑ Lightweight
Due to the special composite structure, the density is relatively small and the weight is very light.

☑ High strength
Impact-resistant, rigid, and flexible, resistant to physical stress shock and damage.

☑ Easy to assemble
The assembly is very convenient and the cost is low. It can be assembled with screws, hollow rivets, or by gluing or heat fusion welding.

☑ Waterproof
This is the unique difference between FRP panels and wood panels. This material has good sealing performance, no water seepage, and no water leakage, even if the surface is damaged, it will not absorb water.

☑ Weather resistant
Glass fiber reinforced thermoplastic materials have a wide temperature range, between -40 and +80 degrees Celsius.

Different FRP Skin Surface Patterns are Available

In addition to the commonly used high-gloss and matte surfaces, the FRP sheet surface of the composite panel can also choose stone grain, wood grain, cloth grain, etc. These can be customized according to customer needs.

TOPOLO Supplies Fiberglass Sandwich Panels with Different Core Materials

XPS Foam Sandwich Panels

Wood Grain Fiberglass Honeycomb Panels
XPS foam sandwich panel is a kind of thermoplastic composite panel containing a thermoplastic resin and continuous fiberglass. The outer skin adopts glossy continuous glass fiber and the inner skin is composited with thermoplastic UD tapes. The core adopting extruded polystyrene connects with the skins through vacuum compression with special adhesives.
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PU Foam Sandwich Panels

Fiberglass PU Foam Sandwich Panels
It is not only beautiful in appearance, light in the material, and easy to install, but also has extremely high thermal insulation, sound insulation, fire resistance, and long service life compared with similar sandwich panels.
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PET Foam Sandwich Panels

Fiberglass PET Foam Sandwich Panels
PET (Polyethylene terephthalate), is commonly known as polyester resin. PET foam is a kind of closed-cell thermoplastic structural foam with certain shear and compressive strength.
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PVC Foam Sandwich Panels

Fiberglass PVC Foam Sandwich Panels
PVC foam panel is a polymer composite material that provides structural support instead of metal. The strength of PVC foam sandwich panels is between PET and PU panels. The PVC foam board has a consistent, smooth, and flat surface, making it suitable for direct print and laminating. The PVC material is self-extinguishing and suitable for projects with the highest safety requirements.
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EPP Foam Sandwich Panels

Fiberglass EPP Foam Sandwich Panels
EPP foam is a closed-cell bead foam that provides a unique range of properties, including outstanding energy absorption, multiple impact resistance, thermal insulation, buoyancy, and water & chemical resistance. TOPOLO T-SW series EPP foam sandwich panel features a high strength-to-weight ratio and 100% recyclability.
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PP Honeycomb Sandwich Panels

Fiberglass PP Honeycomb Sandwich Panels
PP honeycomb panels have the advantages of lightweight, firmness, moisture resistance, water resistance, and sound insulation. They are mainly used in environments with high strength requirements, such as RV floors, pedals, interior decoration, etc.
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Anti-skid Honeycomb Panels

Anti-skid honeycomb panels are made of PP honeycomb cores and CFRT (Contact Fiber Reinforced Thermoplastic) sheets. CFRT sheet is laminated using UD tapes, and its surface is a non-slip texture pressed using a mold. This is not only non-slip, lightweight, and strong but also durable. It can be a good replacement for traditional metal non-slip floors.
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Plywood Sandwich Panels

Fiberglass Plywood Sandwich Panels
Plywood is a material made of multi-layer thin wood veneers. The two adjacent layers of veneers are vertically stacked with each other. It is combined with fiberglass sheets to make some stronger composite panels. The fiberglass reinforced plastic is used as the upper and lower layers, and the middle layer of plywood is used as the core.
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Balsa Core Sandwich Panels

Basha is one of the fastest-growing trees and the lightest wood in the world. The weight of Bashamu is only about 130~180kg/m³, It is not only light but also strong.
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Application of FRP Sandwich Panels

RVs, caravans, campers, etc
RVs, caravans, campers, and trailers use fiberglass foam panels for side panels and roof panels, and fiberglass honeycomb panels for interior decoration.
Transportation industry
Dry trucks and refrigerated trucks for transporting various dry goods, fruits, vegetables, cold drinks, etc.
Mobile homes, mobile toilets, sentry boxes, bedroom door panels, wall panels, ceilings, etc.
Sports products
Such as pick rackets, skateboards, rafting boats, etc. Most of them are honeycomb composite panels.

Choose TOPOLO New Materials

TOPOLO customizes fiberglass composite sandwich panels according to your needs and provides CNC machine-cutting services.

TOPOLO fiberglass sandwich panels factory covers an area of tens of thousands of square meters, with a daily production area of more than 10,000 square meters. Our FRP composite panels are very popular in the international market and currently sell well in Europe, South America, North America, the Middle East, Central Asia, Southeast Asia, Africa, and other markets. For more information, please contact us for more product details and price information.


  • Core Material: PU foam, PET foam, PVC foam, EPP Foam, EPS Foam, XPS Foam, PP Honeycomb, PC Honeycomb, and Plywood.
  • Skin: FRP Sheet, CFRT Sheet.
  • Skin Thickness: 0.7mm~3mm.
  • Core Thickness: 5mm~150mm.
  • Width: 0.1m ~3.2m.
  • Length: Customize.
  • Core Density: 30kg/m3~300kg/m3.
  • Surface Color: RAL Series.
  • Application: RVs, trailers, vans, dry vans, refrigerated trucks, campers, building formwork, scaffolding, mobile homes, sports products, truck floors, etc.
  • Custom-Made: Embedded Tube/Plate, CNC service.

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