GRP Honeycomb Panel Manufacturer - Corrosion Resistant & Durable

GRP Honeycomb Panel

Glass Reinforced Plastic (GRP) Honeycomb Panel combines a polypropylene honeycomb core with glass fiber reinforced plastic (GRP) skins bonded through adhesive. This sandwich structure delivers high strength-to-weight ratio and dimensional stability across diverse industrial applications. The thermosetting resin-based GRP skins may include a gel coat layer for surface finish, while the honeycomb core varies in cell size and density (80-200 kg/m³) to optimize mechanical properties.

The panels demonstrate flexural strength around 9.844 MPa and compression strength of approximately 1.8 MPa, with high tensile and shear resistance. They offer corrosion resistance, waterproofing, heat insulation, and flame retardancy, performing reliably in outdoor and marine environments. The material provides superior sound insulation and includes recyclable components for environmental sustainability.

Standard dimensions range from 10-150 mm thickness, widths up to 3.2 meters, and lengths extending to 12 meters, with thickness tolerance typically ±0.5 mm. Custom sizes accommodate specific requirements, with various surface finishes and colors available. The seamless one-piece design ensures structural integrity and ease of maintenance.

Applications span automotive, rail, and aircraft manufacturing for floors and ceilings; shipbuilding for lightweight hull structures; building exteriors and roofs; renewable energy installations; outdoor advertising; and sports equipment. Panels can be processed using CNC (Computer Numerical Control) machining for cutting, drilling, and shaping, with high-pressure vacuum composite methods ensuring flat surfaces and precise bonding for complex designs.

GRP Honeycomb Panels Supplier for High-Performance Applications

RaxPanel is a global manufacturer of honeycomb core, honeycomb panels, and composite structures, based in Hebei, China. Our GRP honeycomb core is specified wherever high strength-to-weight ratio, energy absorption, or directional qualities are desired. GRP honeycomb panels feature a polypropylene honeycomb core bonded with adhesive and fiberglass reinforced plastic skins, ensuring dimensional stability and robust performance.

With over 20 years of experience since 2002, RaxPanel serves clients in 30+ countries through in-house R&D and production, delivering 1500+ m² daily.

We focus on manufacturing and supply only, without installation services, upholding core values of safety, highest quality, reliability, innovation, and financial soundness.

Our GRP honeycomb panels offer several key advantages:

Lightweight with high structural strength
Waterproof, corrosion-resistant, and weather-resistant
UV-protected, flame retardant, and easy to clean
Excellent flexural and compression strength

We provide processing capabilities for large panels up to 12m with high-precision CNC machining for custom shapes.

These panels are used in various applications such as:

Automotive, train, and aircraft components
Shipbuilding for hulls and cabins
Building exteriors, roofs, and walls
Renewable energy housings
Outdoor advertising displays

To get more information about GRP honeycomb panels and find the perfect solution for your project, please contact us.

Parameter	Value	Unit
Skin Material	Thermosetting Resin GRP	–
Core Material	Polypropylene Honeycomb	–
Total Thickness	10 – 150	mm
Thickness Tolerance	±0.5	mm
Skin Thickness	0.3 – 5	mm
Core Cell Size	6 – 16	mm
Width	≤ 3.2	m
Length	≤ 12	m
Honeycomb Density	80 – 200	kg/m³
Surface Treatment	High gloss, matte, embossed, etc.	–
Surface Color	RAL color series	–
Performance	Anti-UV, flame retardant	–
Flexural Strength	9.844	MPa
Compression Strength	1.8	MPa
Working Temperature	-40 to +80	°C

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Frequently Asked Questions (FAQS)

What is a GRP honeycomb panel?

A GRP honeycomb panel is a composite material consisting of a polypropylene (PP) honeycomb core bonded with adhesive to fiberglass reinforced plastic (GRP) skins made with thermosetting resin. This structure provides high strength, maintains dimensionally stable performance, and offers lightweight construction with excellent impact resistance, waterproofing, sound and heat insulation, corrosion resistance, and anti-UV capabilities. The recyclable PP core makes these panels environmentally friendly.

How do GRP honeycomb panels perform in outdoor and marine environments?

These panels are highly weather-resistant, capable of withstanding rain, sun exposure, snow, sand, and dust, especially in marine climates with high salt content. The GRP skin maintains structural integrity in various conditions and is flame retardant, achieving fire ratings such as B2 class for applications requiring fire safety.

What are the common applications for GRP honeycomb panels?

GRP honeycomb panels are used in automotive, train, and aircraft manufacturing for floors, shells, and ceilings; in shipbuilding for hull and cabin structures; in building exteriors, roofs, and walls; for solar photovoltaic panel housings; outdoor advertising displays; and in sports equipment like table tennis tables and skateboards.

What customization options are available for panel specifications?

RaxPanel offers extensive customization including thickness from 10mm to 75mm (custom options from 6mm to 500mm), lengths up to 12 meters, widths up to 3.2 meters, and skin thickness from 0.3mm to 5mm. Surface treatments include high gloss, matte, embossed, and anti-slip finishes, with colors matched to RAL standards. Core densities range from 80 to 200 kg/m³ to meet specific strength requirements, and custom machining like cutting, drilling, and shaping is available.

How does the lightweight nature of the panels benefit installation?

GRP honeycomb panels are exceptionally lightweight, with an areal weight as low as 0.49 kg/m² for certain configurations, while maintaining high flexural strength (up to 9.844 MPa) and compressive strength. This significantly reduces labor costs and simplifies installation in applications like vehicle bodies or building exteriors without compromising durability or structural integrity.

What technical support and documentation do you provide?

RaxPanel supplies detailed technical data sheets including performance parameters such as flexural strength, compression strength, and thermal properties. We also provide samples and collaborate on specific project requirements to ensure compliance with design specifications.