As a professional truck body solution provider, TOPOLOGROUP delivers fully customized services—from raw GRP sheets and sandwich panels to complete CKD kits and assembled truck bodies.
The vehicle types we serve include:
- Refrigerated trucks.
- Ice cream trucks.
- Medical trucks.
- Expeditionary trucks.
- Dry cargo trucks.
- Catering trucks.
- Ambulance trucks.
- Tool trucks.
- Swap bodies, etc.
What is GRP?
GRP (Glass Reinforced Plastic), also known as FRP, is a high-performance composite material made from thermoset resin reinforced with glass fibers. Offering exceptional strength-to-weight ratio, corrosion resistance, and excellent thermal insulation properties, GRP is rapidly replacing traditional metal sheets in modern truck body manufacturing.
Why GRP? Lightweight, Durable, and Functionally Superior
Compared with metal materials, GRP offers:
- Lower weight, improving payload efficiency
- Zero corrosion, ideal for long-term outdoor use
- Low thermal conductivity, preventing heat transfer
- Easy maintenance, no rust or repainting required
Types of GRP Sheets
Fiberglass Felt Reinforced Gel-Coat GRP Sheets
- Made of chopped fiberglass mat + polyurethane resin + gel coating.
- Smooth, flat surface—mirror-finish achievable.
- High hardness with excellent dimensional stability.
- RAL or Pantone color options.
Fiberglass Cloth Reinforced Gel-Coat GRP Sheets
- Reinforced with woven fiberglass cloth.
- Superior rigidity and elasticity.
- Enhanced impact and crack resistance.
- Surface shows a premium woven pattern.
- RAL or Pantone color options.
GRP Sandwich Panel Series for Truck Bodies
Foam Core GRP Sandwich Panels
GRP sheets are combined with various closed-cell rigid foam core materials.
- Core options: XPS, PET, PU, PVC foam.
- Features: Lightweight + thermal insulation.
- Applications: Suitable for refrigerated truck bodies and specific dry truck body applications.
Honeycomb Core GRP Sandwich Panels
GRP sheets combined with creep-resistant honeycomb panels.
- Core options: PP (polypropylene) honeycomb.
- Features: Excellent compressive and bending strength
- Applications: Perfect for lightweight dry cargo bodies
Plywood Core GRP Sandwich Panels
GRP sheets combined with waterproof marine plywood.
- Core options: Pine, birch, poplar, eucalyptus, etc.
- Features: It is economical and very practical, with a robust and reliable structure.
- Applications: Suitable for box cargo trucks and trailers.
Precision CNC Machining for High-Quality Assembly
After the GRP sandwich panels are produced, they undergo advanced CNC machining, including:
- Cutting.
- Drilling.
- Milling.
- Grinding.
Automated machining ensures high precision, dimensional consistency, and efficient assembly, meeting the structural requirements of various truck body designs.
TOPOLGROUP Innovation & Breakthroughs in GRP Truck Bodies
- New thermoplastic GRP sheet technology for improved truck body performance and recyclability.
- Integrated multi-layer composite panels, exceeding traditional “skin + core + skin” limitations.
- Modular construction, simplifying body assembly and boosting productivity
To learn more about TOPOLOGROUP box truck body solutions, don’t hesitate to get in touch with us.