FRP/GRP Sandwich Panels Manufacturer - Lightweight & High-Strength

FRP/GRP Sandwich Panel

Fiber-Reinforced Polymer/Glass Reinforced Plastic (FRP/GRP) sandwich panels combine a polypropylene honeycomb core with thermoplastic skins through thermal lamination. This adhesive-free process creates homogeneous bonding between materials, delivering high strength-to-weight ratios and full recyclability. The panels resist moisture, corrosion, chemicals, and provide sound dampening with dimensional thermal stability.

Panel construction features Continuous Fiber Reinforced Thermoplastic (CFRT) or FRP/GRP skins thermally fused to honeycomb cores containing non-woven polyester scrim and polypropylene barrier films. Available thicknesses range from 6mm to 120mm, with maximum dimensions reaching 2.8m width by 12m length. Core densities span 60-100 kg/m³ with cell sizes from 3mm to 16mm.

Mechanical properties include compressive strength of 1.47-2.6 MPa, shear strength of 0.40-0.68 MPa, and thermal insulation with U-values around 2.20 W/m²K. Processing utilizes Computer Numerical Control (CNC) machining, thermoforming, and die-cutting. UV resistance comes through carbon black additives or protective coatings.

Applications span transportation (truck bodies, recreational vehicles, yachts), construction (partitions, flooring), and industrial uses (containers, tooling). Customization includes tailored dimensions, core densities, surface finishes, and complete Component Knock Down (CKD) assembly kits.

GRP Foam Core Panel

A composite panel manufactured with fiberglass skins bonded to a high-density structural foam core. This construction provides a lightweight panel with a low thermal conductivity coefficient, high strength, dimensional stability, and inherent water resistance due to its closed-cell foam structure.

GRP Honeycomb Panel

A lightweight panel constructed with fiberglass reinforced plastic skins bonded to a polypropylene honeycomb core. Its special honeycomb structure offers a high strength-to-weight ratio, strong impact resistance, and excellent sound insulation performance, while remaining completely waterproof and corrosion resistant.

GRP Plywood Panel

A high-performance composite panel made from GRP laminated with a marine-grade plywood core, enhancing its structural integrity. This construction boosts waterproof performance, impact resistance, and bending resistance while protecting the core from moisture, corrosion, and scratches for a long service life.

GRP Balsa Sandwich Panel

A structural sandwich panel composed of GRP skins and an end-grain balsa wood core. This configuration provides exceptionally high strength- and stiffness-to-weight ratios. The natural cellular structure of the low-density balsa core delivers remarkable mechanical performance and rigidity.

GRP XPS Sandwich Panel

A composite panel featuring GRP surface sheets and a closed-cell extruded polystyrene (XPS) foam core. Compounded under high pressure, it guarantees strength and stability. Its defining features are excellent thermal characteristics, an extremely low water absorption rate, and high compressive strength.

GRP PET Sandwich Panel

A high-performance sandwich panel combining GRP face sheets with a closed-cell rigid PET foam core. This material has excellent strength, high resistance to bending and buckling, and good thermal insulation properties, with impressive longevity and low weight.

GRP PU Sandwich Panel

A high-efficiency panel made with GRP skins and a rigid polyurethane (PU) foam core. It is defined by an extremely low thermal conductivity coefficient for superior insulation. The foam core also provides high compressive strength and excellent physical and mechanical stability.

GRP PVC Sandwich Panel

A multifunctional composite panel using a closed-cell polyvinyl chloride (PVC) foam core between GRP skins. Its stable chemical structure provides excellent corrosion resistance, inherent flame-retardant effects, and good sound insulation, along with being lightweight and waterproof.

FRP/GRP Sandwich Panel Supplier for High-Performance Applications

RaxPanel, a leading Chinese manufacturer of FRP/GRP sandwich panels, has over 20 years of experience in the production of high-quality polypropylene honeycomb composite panels. Certified to ISO 9001 and IATF 16949 standards, we bring unparalleled expertise and reliability to every product. Our FRP/GRP sandwich panels feature a unique structure with a polypropylene honeycomb core, delivering remarkable advantages including:

Light weight
High compressive strength
Excellent environmental performance
Full waterproof, moisture-proof, and corrosion-resistant properties

As a direct manufacturer based in Hebei with in-house R&D, design, and full production capabilities, we produce over 1500 m² daily to serve clients across 30+ countries. Our panels are engineered for diverse applications such as transportation, construction, marine, and industrial use, offering a durable, recyclable, and easily processed alternative to traditional materials. Committed to providing high-performance, reliable, and eco-friendly solutions, RaxPanel invites you to experience the quality and innovation built into every FRP/GRP sandwich panel we produce.

Factory Tour
Send Inquiry Today

Other Products You May Like

Building Sandwich Panel

Aluminum Sandwich Panel

CFRT Sandwich Panel

Frequently Asked Questions

What are the key features of RaxPanel FRP/GRP Sandwich Panels?

RaxPanel FRP/GRP Sandwich Panels are lightweight, high-strength composite panels featuring a polypropylene honeycomb core. They are waterproof, corrosion-resistant, wear-resistant, and 100% recyclable. The panels offer excellent impact resistance, are impervious to moisture, and provide high sound dampening properties.

What applications are RaxPanel FRP/GRP Sandwich Panels suitable for?

These panels are widely used in van and truck bodies, RV construction, marine applications like yachts and boat decks, mobile architecture, building partitions, flooring, and industrial uses such as containers, tanks, and tooling. They are ideal for replacing traditional materials like metal and wood in lightweight structural applications.

Can RaxPanel provide custom sizes and specifications?

Yes, RaxPanel offers customized color, size, thickness, and density options. We also provide CNC processing services to meet specific project requirements, eliminating the need for reprocessing and ensuring precise dimensions for your application.

How durable and resistant are these panels to environmental factors?

RaxPanel FRP/GRP Sandwich Panels are highly durable, with excellent resistance to water, chemicals, corrosion, fungi, rot, and UV exposure. They maintain dimensional stability across a wide temperature range (-40°F to 230°F) and offer strong compressive, shear, and impact strength for long-lasting performance.

Are RaxPanel FRP/GRP Sandwich Panels environmentally friendly?

Yes, these panels are 100% recyclable, energy-efficient, and free from VOCs and formaldehyde. The thermoplastic materials used are sustainable, and the production process emphasizes green and eco-friendly solutions without compromising on performance or durability.

What surface treatments and finishes are available?

RaxPanel offers a variety of surface treatments including glossy, matte, embossed, and painted finishes. Options also include protective films for enhanced scratch resistance and customized textures or patterns to meet aesthetic and functional requirements for different applications.

What technical support and services does RaxPanel provide?

RaxPanel provides comprehensive support including customized product development, CNC machining services, accessory provisions, and CKD/SKD services. We also ensure reliable packaging solutions for safe transportation and offer expert guidance to meet specific project needs across various industries.

What support is available for long-term OEM partnerships and deep customization projects?

We offer comprehensive support for OEMs, including long-term supply agreements, bulk pricing options, and dedicated R&D collaboration to develop custom solutions. Our manufacturing capabilities allow for deep customization of panel dimensions, thicknesses, surface treatments, and core densities to meet specific application requirements. With over 20 years of experience and a daily output of 1500+ m², we ensure consistent quality and reliable supply chain stability for large-scale production needs.

What resources and support do you provide to distributors and channel partners?

We support our distributors with favorable pricing structures, marketing materials such as brochures and product samples, and reliable logistics coordination to ensure timely delivery. Our panels are available in standard and custom sizes, facilitating good inventory turnover. As a direct manufacturer, we offer competitive bulk pricing and ensure product availability to help partners meet market demand and achieve strong profit margins.

How do you ensure product performance and support for construction and installation teams?

Our panels are designed for ease and speed of installation, with high compressive and bending strength, waterproof properties, and resistance to wear and corrosion. We provide detailed technical data sheets, installation guides, and access to performance test reports to support proper application. The material’s lightweight nature reduces dead loads, improves load capacity, and enhances project efficiency, while its durability ensures long-term performance in demanding environments.