Name: PET Foam Sandwich Panel
Brand: RaxPanel

PET Foam Sandwich Panel

PET Foam Sandwich Panel is a composite material designed for structural applications where low weight and high performance are required. It features a polyethylene terephthalate (PET) foam core sandwiched between rigid facings such as fiberglass, aluminum, or composite sheets. The closed-cell foam core contributes to structural integrity and insulation properties, while the facings provide strength, impact resistance, and a finished surface.

The panel offers key advantages including lightweight characteristics for easier handling and installation, resistance to moisture and environmental conditions, and energy efficiency through thermal insulation. Its durability and structural performance make it suitable for long-term applications requiring reliability.

Available in customizable dimensions with thicknesses from 10 mm to 120 mm, widths up to 3.2 meters, and lengths up to 12 meters, the panel can be tailored to specific project needs. Foam core density and facing materials can be selected to meet required strength and insulation levels.

Application scenarios include marine equipment, transportation vehicles, wall panels, partitions, and flooring in recreational vehicles, modular constructions, and industrial settings. The panel can be processed through CNC cutting, drilling, and shaping, with options for lamination, trimming, and various surface treatments to meet specific requirements.

Your Global PET Foam Sandwich Panel Wholesaler

RaxPanel is a professional high-end PET foam sandwich panel manufacturer in China, operating from our advanced production facility in Hebei. With over 20 years of experience since our founding in 2002, we specialize in delivering custom composite panel solutions through integrated in-house R&D, design, and manufacturing. Our commitment to excellence and leadership in both quality and output is demonstrated by a daily production capacity exceeding 1500 m², serving clients across more than 30 countries worldwide.

Our PET Foam Sandwich Panels are engineered for superior performance, combining a lightweight PET foam core with high-strength composite skins. This structure ensures excellent stiffness, durability, and thermal insulation, making it ideal for demanding applications.

Specifications and features include:

Core Material: Environmentally friendly polyethylene terephthalate (PET) foam
Lightweight and high strength, suitable for structural applications
Excellent insulation properties and moisture resistance
Custom sizes, colors, and finishes available

Applications include marine interiors, transportation equipment, refrigerated vehicles, and building systems. Each panel benefits from our rigorous quality control and advanced manufacturing techniques, ensuring you receive a product that meets the highest standards for performance and reliability.

Parameter	Specification
Core Material	Polyethylene Terephthalate (PET) Foam
Core Structure	Closed-cell
Core Density	Customizable (Based on application requirements)
Facing Materials	Fiberglass, Aluminum, Composite Sheets (Customizable)
Total Thickness	10 mm – 120 mm
Panel Width	Up to 3.2 m
Panel Length	Up to 12 m
Compressive Strength	Customizable (Based on core density and construction)
Key Properties	Lightweight, High Strength, Moisture Resistant, Thermal Insulation
Embedding Options	Aluminum Profiles, Fiberglass Profiles, etc. (For enhanced structural strength)
Processing	CNC Cutting, Drilling, Shaping, Lamination
Applications	Marine Equipment, Transportation Vehicles, Wall Panels, Partitions, Flooring, Modular Constructions

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PET Foam Sandwich Panel Selection & Engineering Guide

PET Foam Sandwich Panel combines high-strength composite skins with an engineered core to deliver superior thermal insulation, structural rigidity, and long-term durability for commercial applications.

💡 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 acts as the web in an I-beam structure, handling shear stress and maintaining thermal R-value insulation:

Performance Metric	RaxPanel Engineering Standard	Application Advantage
Skin Spec	Engineered Aluminum / Composite Skin (0.3mm – 2.0mm / 1.0-3.0mm)	High tensile and impact resistance against road debris
Thermal Conductivity	~ 0.022 – 0.035 W/m·K	Consistent thermal R-value energy savings
Adhesive Layer	Two-component PU / Epoxy Adhesive	Delamination-free performance under thermal 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 PET Foam Sandwich Panels Most Commonly Installed?

🚚 Vehicle Bodies & Trailers

Lightweighting and high-impact structural strength for mobile fleets.

🏢 Cold Rooms & Building Envelopes

Thermal R-value insulation and moisture-proof building enclosures.

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 PET Foam 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 PET Foam Sandwich Panels?

PET Foam 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. 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.