Name: Panel Sándwich PET GRP
Brand: RaxPanel

Panel Sándwich PET GRP

The GRP PET Sandwich Panel is consisted of fiberglass reinforced plastic (GRP) skins bonded to a polyethylene terephthalate (PET) foam core. This structure combines the high strength and durability of the GRP surface layers with the lightweight and insulating properties of the rigid PET foam core. The panels are manufactured using high-pressure processes to ensure a stable and permanent bond between the layers.

These panels are utilized in applications requiring a combination of thermal insulation, structural integrity, and resistance to environmental factors. Common uses include wall and roof systems in construction, interior and exterior panels for recreational vehicles (RVs), commercial trailers, and marine applications. The material can be processed using standard woodworking tools and CNC machining for custom shapes and sizes, with a typical maximum panel length of 12 meters and width of 3.2 meters.

Key Characteristics:

High strength-to-weight ratio due to the composite sandwich structure
Effective thermal insulation with low thermal conductivity
Resistencia a la humedad, la corrosión y una amplia gama de productos químicos
Long service life with stability across a temperature range from -50°C to +80°C
Customizable dimensions, surface finishes, and colors
Ease of installation and processing with standard tools

Your Trusted Supplier for High-Performance GRP PET Sandwich Panels

RaxPanel is a professional high-end fiberglass sandwich panel manufacturer in China, specializing in custom composite panel solutions. With over 20 years of experience since our founding in 2002, we have built a strong reputation for innovation and quality, serving clients across more than 30 countries. Our in-house R&D, design, and production capabilities ensure that every GRP PET Sandwich Panel we produce meets the highest standards of performance and reliability.

Our GRP PET Sandwich Panel combines a fiberglass reinforced plastic skin with a PET foam core, creating a lightweight yet durable composite material ideal for applications such as refrigerated truck bodies, cold rooms, wall partitions, and container houses. The sandwich structure offers:

Excellent thermal insulation, reducing energy loss and maintaining stable temperatures
High strength and impact resistance, thanks to the composite design and quality materials
Waterproof and corrosion-resistant properties, ensuring long service life even in demanding environments
Lightweight composition, which helps reduce overall weight and improve fuel efficiency in mobile applications

Produced at our Hebei-based facility with a daily output of over 1500 m², our panels are manufactured using advanced processes and high-quality raw materials. We offer customized solutions in terms of size, thickness, surface finish, and performance treatments to meet specific project requirements.

To learn more about product applications, please consult us. We provide reliable customized solutions for your project.

Categoría de Parámetro	Parámetro	Valor
Especificaciones Generales	Material del Núcleo	Espuma de Polietileno Tereftalato (PET)
	Material del revestimiento	Fiberglass Reinforced Plastic (GRP)
	Largo Máximo	12 m
	Maximum Width	3.2 m
	Rango total de espesor	10 – 120 mm
Material del Núcleo	Core Density Range	50 – 300 kg/m³
	Thermal Conductivity	0.02 – 0.038 W/m·K
	Closed Cell Rate	≥ 99%
	Absorción de agua	≤ 1%
	Operating Temperature	-50°C to +80°C
Material del revestimiento	Tratamiento de Superficie	Gel-coat (RAL colors)
Propiedades Mecánicas	Flexural Strength	36.966 MPa
	Resistencia a la Compresión	0.1 – 1 MPa
Thermal Properties	Service Life	Up to 50 years

Productos relacionados

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Panel de Panal GRP

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Panel Sándwich PET GRP

Panel Sándwich PU GRP

Panel Sándwich PVC GRP

Panel Sándwich XPS GRP

GRP PET 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 PET 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 PET 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 PET Sandwich Panels?

GRP PET 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.