PET Foam Core

Introduction of PET Foam Core

PET Foam Core is a closed-cell thermoplastic structural foam manufactured from recyclable polyethylene terephthalate (PET) resin. It is widely used as the lightweight core material in composite sandwich structures where high stiffness, excellent fatigue resistance, and long service life are required.

Compared with traditional PVC foam, PET foam offers superior temperature resistance and sustainability while maintaining excellent mechanical performance. Compared with PMI foam, it provides a much more economical solution for most structural applications.

JLONcell PET Foam is engineered for demanding composite manufacturing processes including vacuum infusion, RTM, vacuum bagging, compression molding, and hand lay-up.

Technical Data Sheets of PET Foam Core

TDS PET Foam Core.pdf

Video of PET Foam Core

Features of PET Foam Core

Physical Characteristics

l Good mechanical properties and fatigue resistance

l Multiple density specifications suitable for different application fields

l Closed-cell structure, low water absorption, mildew resistant

l Excellent processability, can be cut, easily bonded, and can be heat-formed into various curved shapes

Chemical Characteristics

l Excellent heat resistance, long-term service temperature 120°C, short-term maximum service temperature

l Good thermal insulation, thermal conductivity as low as 0.027 W/m·K

l Green and environmentally friendly, thermoplastic and recyclable

l Excellent chemical stability and UV resistance

100% Recyclable Thermoplastic Core Material

Made from high-performance PET, this core material is a fully recyclable thermoplastic solution that supports sustainable composite manufacturing.

It maintains high mechanical strength, temperature resistance, and chemical stability while reducing environmental impact.

At the end of product life, it can be mechanically recycled and reprocessed, contributing to a circular materials economy.

Manufacturing Process Compatibility

Process Compatibility

JLON PET foam core is designed to work seamlessly across the full spectrum of composite manufacturing methods. Its stable cellular structure ensures predictable behavior regardless of the production technique.

Vacuum Infusion

The closed-cell structure minimizes resin uptake while the uniform cell morphology ensures consistent resin flow throughout the laminate. Ideal for large-scale infusion projects where resin distribution control is critical.

Hand Lay-up

Easy to cut, shape, and position on the mold surface. The foam conforms well to moderate curvatures and bonds reliably with all common resin systems, giving laminators flexibility in manual operations.

Spray-up

The rigid cell structure resists erosion during spray deposition, maintaining dimensional accuracy and surface quality throughout high-output production runs.

Vacuum Bagging

Maintains dimensional stability under vacuum pressure, ensuring uniform laminate thickness and consistent core-to-skin adhesion in autoclave and out-of-autoclave processes.

Specifications of PET Foam Core

Application of PET Foam Core

Wind Energy

Wind turbine blades operate under continuous cyclic loading, making fatigue performance a critical selection criterion. JLON PET foam's excellent long-term fatigue resistance, combined with low resin uptake and high temperature stability, makes it a proven core material for spar caps, shear webs, and blade shells. Many wind energy specifications require sealed-surface foam — a standard option in our product lineup.

UAV & Drone Structures

Weight is everything in aerospace applications. JLON PET foam delivers high specific stiffness and strength at low densities, enabling extended flight times and improved payload capacity. Its vibration damping characteristics also help protect sensitive avionics from resonance fatigue.

Marine & Shipbuilding

From hulls and decks to bulkheads and superstructures, marine composite structures demand durability in saltwater environments. JLON PET foam's closed-cell structure prevents water ingress, while its inherent resistance to mold and mildew ensures long service life in humid maritime conditions.

Construction & Industrial Panels

PET foam manufactured in China can be combined with PET-based UD glass fiber to produce fully recyclable CFRT–PET sandwich panels.Widely used in decorative boards, partitions, prefabricated building systems, lightweight furniture.

FAQs of PET Foam Core

Q1.What are the advantages of PET foam core over PVC foam?

A:PET foam is 100% recyclable, has higher temperature resistance, better environmental performance and lower water absorption compared with traditional PVC foam core.

Q2. What industries use PET foam core?

A:PET foam core is mainly used in wind turbine blades, shipbuilding, automotive, rail transit, construction panels, aerospace and other composite applications.

Q3.Can PET foam core withstand high temperatures?

A:Yes. PET foam has good thermal stability and can perform well in higher temperature environments compared with standard PVC foam core materials.High exothermic peak tempertaure resistance, up to 180C.

Q4.Is PET foam core waterproof?

A:PET foam features closed-cell structure with low water absorption, so it has excellent waterproof and moisture resistance, especially suitable for marine applications.

Q5.Can your company customize products?

A: Yes, We usually discuss with customers and help them find solutions.

Q6. How can I get a sample from you to check quality?

A: Usually a sample will be prepared within one week after specification agreed.

Q7. What about your delivery time? Can we receive our goods on time?

A: Usually around 2-3 weeks after order confirmed. Exact delivery time depends on order quantity and Off-season/ busy season.

Q8. What is the Guarantee to buy your products? How to resolve quality complaints?

A: Offer TDS of each lot of production for confirmation before delivery.Once you have any quality problem, you can provide samples /pictures /test data. With our quality tracking system, we will give you feedback in short time. If the quality problem confirmed,we will send you replacement or make refund as you like.

Q9. What are your terms of payment?

A: Usually we do EXW, FOB, CIF, and DDU.

Q10.Do you offer international shipping?

A:Yes. We export PET foam core to Europe, North America, Southeast Asia, Middle East and other regions with safe
and efficient logistics solutions.