Name: GRP Honeycomb Panel
Brand: RaxPanel

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

Related Products

ACP Facing Honeycomb Panel

GRP Honeycomb Panel

Non-Slip Honeycomb Panel

Thermoplastic Honeycomb Panel

GRP Honeycomb Panel Selection & Engineering Guide

Selecting the right specification for GRP Honeycomb Panel depends on matching structural load requirements, environmental exposure, and thermal R-value insulation goals. At RaxPanel, our engineering team manufactures high-performance composite panels to deliver durable, moisture-resistant, and energy-efficient solutions for industrial and commercial projects worldwide.

💡 Pro Tip: Delamination Prevention Under Thermal Cycling
At RaxPanel, we utilize automated vacuum lamination with high-performance two-component polyurethane adhesives to ensure a bond strength that absorbs differential thermal expansion without micro-delamination.

1. How to Choose the Right Skin Alloy and Thickness

Outer skin selection governs mechanical impact resistance, corrosion barriers, and structural stiffness across different operating environments.

2. How Well Does the Core Insulate and Withstand Heavy Loads?

The core material handles shear stress and maintains thermal R-value insulation across operating temperature ranges:

Performance Metric	RaxPanel Engineering Standard	Application Advantage
Outer Skin Spec	Pre-Painted Aluminum / GRP Sheet (0.3mm – 2.0mm)	High tensile strength and corrosion resistance
Thermal Conductivity	~ 0.020 – 0.038 W/m·K	Consistent R-value insulation & energy savings
Bonding Adhesive	Two-Component Polyurethane / Epoxy Adhesive	Delamination-free performance under freeze-thaw cycles

3. Which Surface Finish Will Protect Your Panels for 20+ Years?

Factory roller coating specifies long-term color stability, UV protection, and resistance against industrial pollutants or marine salt spray.

4. How Fire-Safe and Soundproof Are These Panels?

🛡️ Compliance & Acoustic Isolation:

Fire Safety: Formulations comply with EN 13501-1 Class B-s1,d0 and GB8624 Class B1 building fire safety standards.
Sound Damping: Composite core attenuates noise transmission by 24 dB to 30 dB relative to solid metal sheets.

5. Where Are GRP Honeycomb Panels Most Commonly Installed?

🏢 Commercial & Industrial Buildings

Exterior wall cladding, cleanroom partitions, and insulated roof envelopes.

🚚 Cold Storage & Transport Fleets

Refrigerated truck bodies, cold storage rooms, and RV composite walls.

6. How to Cut, Groove, and Seal Edges During Installation

Panels process easily on-site using standard CNC machinery, routers, or specialized edge profiles for airtight moisture sealing.

Frequently Asked Questions (FAQS)

1. What are the standard panel thicknesses, maximum lengths, and width options available for GRP Honeycomb Panels?

Standard panel thicknesses range from 10mm up to 150mm. Standard widths include 1000mm, 1220mm, and 1500mm, with maximum single-sheet lengths up to 5800mm (5.8m) to fit ocean freight container shipping dimensions.

2. What are the primary engineering benefits of using GRP Honeycomb Panels?

GRP Honeycomb Panels deliver an exceptional stiffness-to-weight ratio, rot-proof moisture resistance, reliable thermal insulation, and dynamic fatigue endurance for high-stress applications.

3. How do these composite panels perform under high humidity and outdoor weathering?

The closed-cell core prevents water logging and condensation absorption, while pre-painted skins provide a 20+ year weatherability barrier against UV degradation.

4. What fire safety ratings and quality certifications do these composite panels meet?

Flame-retardant formulations meet EN 13501-1 Class B-s1,d0 and GB8624 Class B1 fire performance standards. Manufacturing quality is governed under ISO9001 management systems, with raw material performance verified under SGS and CE testing.

5. What surface coating options are available for exterior UV protection?

70% PVDF Fluorocarbon Coating PVDF coating provides a 20+ year exterior weatherability warranty against UV fading and acid rain. FEVE offers high gloss retention, while PE coating is cost-effective for indoor partitions.

6. Can these composite panels be CNC grooved, bent, or edge-sealed on-site?

Yes. Pre-painted skins can be V-grooved at 90° or 135° on the reverse side using standard CNC routers or hand tools, allowing manual edge folding into architectural cassettes without surface paint cracking.

7. How are large panel shipments packaged to prevent freight damage during ocean transit?

Panels are packed with protective PE film on both skins, separated by inter-sheet foam layers, and secured on heavy-duty export wooden pallets or CKD steel crates to prevent shipping damage during 20ft and 40ft container freight.