Fiberglass/GRP Foam Core Panel

Fiberglass/Glass Reinforced Polymer (GRP) foam core panels combine fiberglass reinforced polymer skins with a lightweight foam core in a sandwich construction. The Glass Reinforced Polymer (GRP) skins feature glass fibers embedded in thermosetting resin, while the core uses rigid foam such as polyurethane (PU), extruded polystyrene (XPS), or polyethylene terephthalate (PET). High-performance adhesives bond these layers for structural integrity across environmental conditions.

The panels deliver exceptional thermal insulation through their closed-cell foam cores, which effectively reduce heat transfer. Their lightweight construction achieves high strength-to-weight ratios while maintaining impact resistance and durability. The GRP surface provides scratch resistance and withstands moisture, corrosion, and chemical exposure for extended service life.

Standard specifications include thickness ranges from 10mm to 120mm, with maximum dimensions reaching 12 meters length and 3.2 meters width. Foam core density varies between 28 kg/m³ and 300 kg/m³ depending on performance requirements. Surface treatments include glossy or matte finishes with optional protective films.

Applications span transportation (refrigerated truck bodies, trailer linings), marine construction (boat decks, cabin partitions), building systems (partition walls, curtain walls), and industrial uses (logistics crates, furniture manufacturing). The panels machine easily with standard woodworking tools or Computer Numerical Control (CNC) equipment for precise cutting, drilling, and routing operations.

Trusted Global Supplier: RaxPanel GRP Foam Core Solutions

As a leading manufacturer, supplier, and exporter of polyurethane foam (PU) sandwich panels, RaxPanel leverages 20+ years of expertise to deliver Fiberglass/GRP Foam Core Panels engineered for superior thermal insulation and durability in freezer cargo boxes.

Based in Hebei, China, and serving clients in 30+ countries, our in-house R&D and production capabilities ensure every panel benefits from continuous fiber reinforcement for exceptional toughness and PU foam core properties for optimal temperature retention.

With a daily output of 1500+ m², we provide reliable, custom solutions that meet rigorous industry demands. Our commitment to excellence and advanced technology guarantees sustainable, high-performance materials tailored to your specific needs.

Choose RaxPanel Fiberglass/GRP Foam Core Panels and experience the difference in quality and efficiency.

Parámetro Specification
Panel Material Fiberglass Reinforced Polymer (FRP) Skin
Material del Núcleo Rigid Foam (e.g., PU, XPS, PET)
Densidad del núcleo 28 – 300 kg/m³ (Customizable)
Espesor Total 10 – 120 mm
Length ≤ 12 m
Width ≤ 3.2 m
Tratamiento de Superficie Glossy / Matte Finish; Optional Protective Film
UD Tape Layers (Skin) 2 – 9 layers (Customizable)
Temperature Resistance High Temp: Up to 120°C; Low Temp: -40°C
Peso Custom, based on thickness and core material
Performance Treatments Optional: UV-resistant, Anti-static, Flame-retardant
Processing CNC Machining (Cutting, Drilling, Routing)
Embedded Reinforcement Optional: Aluminum profiles, Wooden inserts





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    Productos relacionados

    GRP Foam Core Panel Selection & Engineering Guide

    Las superficies composite de plástico reforzado con fibra de vidrio (GRP / FRP) unidas a núcleos de espuma estructural o colmena proporcionan una superior protección como barrera anticorrosión, alta resistencia a flexión y fácil mantenimiento para recintos marinos y de transporte.

    💡 Consejo profesional: Prevención de la delaminación bajo ciclos térmicos
    En RaxPanel, utilizamos laminado automático al vacío con adhesivos de poliuretano bicomponente de alto rendimiento para garantizar una resistencia de unión que absorbe la expansión térmica diferencial sin microdelaminación.

    1. Cómo elegir el aleación y espesor del revestimiento adecuado

    La selección del revestimiento externo determina la resistencia al impacto mecánico, las barreras contra la corrosión y la rigidez estructural en diferentes entornos operativos.

    2. ¿Qué tan bien aísla y soporta cargas pesadas el núcleo?

    El material del núcleo actúa como el alma de una viga en I, soportando esfuerzos cortantes y manteniendo el aislamiento térmico (valor R):

    Métrica de rendimiento Estándar de ingeniería de RaxPanel Ventaja de aplicación
    Especificación del revestimiento Hoja de tejido roving de GRP / FRP (0,3 mm – 2,0 mm / 1,0-3,0 mm) Alta resistencia a la tracción y al impacto contra escombros de la carretera
    Thermal Conductivity ~ 0,028 – 0,038 W/m·K Ahorro de energía con valor térmico R constante
    Capa adhesiva Adhesivo PU / epoxi de dos componentes Rendimiento libre de delaminación en ciclos térmicos de congelación-descongelación

    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 Foam Core Panels Most Commonly Installed?

    🚢 Mamparos de cabinas marinas e interiores de barcos

    Salt-spray immune composite bulkheads reducing vessel top-weight.

    🚛 Transport Compartments & Chemical Housings

    Chemical resistant and high-impact bodywork for aggressive environments.

    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 Foam Core 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 Foam Core Panels?
    GRP Foam Core 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. ¿Estos paneles compuestos pueden ser canalizados, doblados o sellados en los bordes en sitio con CNC?
    Sí. Las pieles pre-pintadas se pueden canalizar en V a 90° o 135° en el lado opuesto usando routers CNC estándar o herramientas manuales, permitiendo el doblado manual de bordes en casetes arquitectónicos sin agrietar la pintura superficial.
    7. ¿Cómo se empaquetan los grandes envíos de paneles para prevenir daños durante el tránsito marítimo?
    Los paneles se empaquetan con película protectora de PE en ambas pieles, separados por capas de espuma intercaladas, y asegurados sobre palets de madera de exportación de alta resistencia o contenedores de acero CKD para prevenir daños durante el flete en contenedores de 20 pies y 40 pies.


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