TOPOLOGROUP – Innovative Sandwich Panel Manufacturer

TOPOLOGROUP is a leading PET foam sandwich panel manufacturer in China, focusing on the research, development, production and sales of high-performance composite materials. As a technology-driven company, TOPOLOGROUP uses advanced production processes and equipment to provide a variety of PET foam sandwich panels of different specifications and application scenarios to meet the needs of different industries for lightweight, high-strength and environmentally friendly materials.

Structural Diagram

As a composite material that is both lightweight and high-performance, the classic three-layer structure (facing – core – facing) of PET sandwich panels is the core design to achieve structural stability and functional diversity. This composite form seems simple, but through the synergy of each layer of material, it achieves an efficient balance in mechanical properties, lightweight and application adaptability.

PET Foam Core

01. Closed-cell structure

The structural characteristic of PET (polyethylene terephthalate) foam is that the bubbles inside the foam are closed and not connected to the outside world. This special structure gives PET foam the following unique advantages:

• Low water absorption: Since the bubbles are closed, water cannot enter the foam, making it extremely low in water absorption and able to be used stably for a long time in a humid or underwater environment.
• High mechanical strength: The closed bubbles provide strong structural support, making the closed-cell PET foam show higher compressive strength and bending resistance when subjected to external forces.

02. Can be recycled multiple times

• PET foam has significant advantages in environmental protection. After steps such as crushing, cleaning, drying, and melt granulation, the generated PET particles can be used to produce new PET foam or other PET products.