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Plywood is made from multiple layers of thin wood veneers, with two adjacent layers of veneers stacked perpendicular to each other. It maximizes the use of wood and reduces waste. However, pure plywood has low strength and waterproof performance, and the visual effect is not very good. For example, it is easy to rot in a humid environment and has a short service life. In order to solve these problems, bonding a layer of FRP (fiberglass reinforced plastic) on its surface is one of the effective methods.

Structure of Fiberglass Plywood Sandwich Panels

The plywood is laminated with FRP sheets using glue to form a strong sandwich composite panel. Its upper and lower layers are made of fiberglass, and the middle layer is plywood as the core. FRP plywood sandwich panels are corrosion-resistant, impact-resistant, and weather-resistant, and can be cut like ordinary plywood.

Structure of Fiberglass Plywood Sandwich Panels


  • Size: 1220x2440mm, or customized.
  • Plywood thickness: 10~30mm, or customized.
  • FRP thickness: 0.7~5mm or customized.
  • Core material: Beech, camphor, willow, poplar, eucalyptus, etc.
  • Plywood layers: 3~11 layers, or customized.

Performance Parameters (Reference)

Skin Thicknessmm1.5
Core Thicknessmm11
Areal WeightKg/m²1
Flexural Strength (Max Load: 2770.659N, Sample Size: 300x100x14mm)MPa36.966
Compression Strength
(Max Load: 2770.659N, Sample Size: 60x60x14mm)
Note:The above values are average values obtained by the laboratory and are for reference only. Actual performance figures vary based on materials, specifications and craftsmanships.

FRP Skin Plywood VS Pure Plywood

ItemFRP Skin PlywoodPure Plywood

Impeccable Quality

Waterproof Fiberglass Plywood Sandwich Panels
High Strength
  • Fiberglass reinforcement gives the plywood a protective layer, which increases the impact load the plywood can bear.
Waterproof Fiberglass Plywood Sandwich Panels
  • FRP has good waterproof performance. It only needs to seal the edge of the panel to effectively prevent moisture from entering the inside of the panel.

Application of FRP Plywood Sandwich Panels

FRP sandwich panels are mainly used in RVs, caravans, campers, mobile homes, box trucks, buildings, furniture, etc. Mostly used in wall panels, door panels, roof panels, floors, partitions and other parts.

Types of Fiberglass Reinforced Sheets

At TOPOLO, the special thing about fiberglass plywood is that you can choose not only thermosetting FRP, but also thermoplastic FRP (CFRT – Continuous Glass Fiber Reinforced Thermoplastic) as the skin material.

Choose TOPOLO Fiberglass Plywood Composite Panels

TOPOLO has the most advanced fiberglass plywood production equipment and technology, and the plywood sandwich panels it produces sell well in the international market. As a professional composite panel manufacturer, we also provide CNC processing services to quickly and accurately process the plywood shapes you need.

Production of Fiberglass Plywood Sandwich Panels