Panel Sándwich PVC GRP

GRP PVC sandwich panels combine glass fiber reinforced plastic (GRP) skins bonded to a polyvinyl chloride (PVC) foam core, delivering high strength-to-weight ratio with thermal insulation. The closed-cell PVC foam core provides low thermal conductivity while the GRP skins contribute structural rigidity. These panels offer waterproof performance, corrosion resistance to acids and alkalis, and flame retardant capabilities, making them suitable for moisture-exposed and chemically aggressive environments. Operating temperature ranges from -40°C to +80°C, with anti-ultraviolet additives ensuring color stability and reducing yellowing over time.

The GRP skins utilize either thermosetting resins (unsaturated polyester or epoxy) or thermoplastic variants such as continuous fiber reinforced thermoplastic (CFRT) sheets. PVC foam cores range from 40 to 250 kg/m³ density, adjustable for compressive strength and insulation requirements. Polyurethane or polyester adhesives bond the layers, preventing delamination under stress. Quality control ensures smooth, flat surfaces free from defects, with tight core-to-skin bonding that resists edge warping.

Standard dimensions reach up to 12 meters in length and 3.2 meters in width, with thickness customizable from 10 mm to 150 mm. Weight typically ranges from 7.0 to 8.6 kg/m² depending on configuration. CNC machining enables precise cutting, drilling, and shaping for complex designs, while standard composite tools facilitate efficient fabrication and assembly.

GRP PVC Sandwich Panel Supplier for Superior Thermal Efficiency

RaxPanel is a technology company integrating new materials and innovative solutions, based in Hebei, China. Since our founding in 2002, we have over 20 years of experience as a direct manufacturer specializing in custom composite panel solutions.

Our GRP PVC Sandwich Panels exemplify our commitment to quality and innovation, featuring a sandwich structure that bonds PVC sheets with foam insulation to deliver outstanding thermal insulation, sound absorption, and fire resistance. This advanced design ensures energy efficiency by maintaining stable indoor temperatures, leading to significant reductions in heating and cooling costs while enhancing comfort.

With in-house R&D, design, and production capabilities, we uphold strict quality control and achieve a daily output of over 1500 square meters. Our panels are customizable in sizes, thicknesses, and colors to meet diverse project needs.

We serve a global market, with clients in over 30 countries, providing reliable manufacturing and supply services exclusively. Please contact us to get more information and find the perfect solution for your project.

Categoría de Parámetro Parámetro Valor
Especificaciones Generales Material del revestimiento Glass Reinforced Plastic (GRP)
Material del Núcleo Closed-cell Polyvinyl Chloride (PVC) Foam
Adhesive High-strength, heat and low-temperature resistant
Dimensions Thickness 10 – 120 mm
Width ≤ 2.8 m
Length ≤ 12 m
Core Properties Densidad del núcleo Customizable (Typical range: 40-70 kg/m³)
Absorción de agua None (Closed-cell structure)
Performance Aislamiento térmico Excellent (Low thermal conductivity)
Resistencia al impacto Alta
Scratch Resistance High (Protective film available)
Corrosion Resistance Excellent
Waterproof Yes
Surface & Finish Tratamiento de Superficie Matte / Glossy; Protective film (e.g., PET, PP)
Color Options Customizable
Processing & Customization Machinability Standard woodworking and CNC tools
Refuerzos Incrustados Wood, aluminum profiles (optional)
Reciclabilidad Yes





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    Productos relacionados

    GRP PVC Sandwich 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 PVC Sandwich 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 PVC Sandwich 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 PVC Sandwich Panels?
    GRP PVC Sandwich 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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