Beijing SOHO Building Materials Group Co.,Ltd.
What is Graphite Insulation Board

Graphite XPS Insulation Board

What is Graphite Insulation Board

The SOHO low internal stress graphite extruded insulation board is designed to achieve optimal thermal conductivity and dimensional stability, with high-quality raw materials playing a crucial role. Our graphite polystyrene insulation board boasts a thermal conductivity of ≤0.021 and a dimensional stability of ≤0.8.


Using advanced imported production lines, we ensure that the effective components of the raw materials are fully utilized during the melting and mixing process. After melting and mixing, raw materials are processed through SOHO Group's independently developed patented multiple foaming equipment. This allows conventional XPS to achieve more complete foaming and more uniform density, ensuring better dimensional stability and improved thermal conductivity for the graphite insulation board.


Check out the specification of our graphite insulation boards. Please feel free to contact us if you have any questions.

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Specifications of Graphite XPS Insulation Board

Fluorine-free, bromine-free, low internal stress type - graphite extrusion (GXPS) insulation board
projectX200 X250 X350 X450 X550 X600 X700 X800 X900
Thermal Conductivity W/ (m·k)0.024
Dimensional stability0.2~0.6
proper temperature-50℃ ~75℃
Compressive strength KPa200~900KPa
water absorption %0.3~1.0
density kg/m3≥26
Combustion performanceB1/B2
Oxygen Index %26~32
Specificationlength mm1200; 1450; 1800; 2400
width mm600; 1200
thickness mm10~150
Surface treatmentSmooth surface / embossed shallow groove / peeled type


FAQs About Graphite XPS Insulation Board

1 What is graphite insulation board?

Graphite EPS insulation board, also known as graphite diffusion board or graphite thermal conductive board, is a high-tech new material with good thermal conductivity and excellent mechanical properties. It is made of polymer foam and graphite powder. A thermal insulation material extruded under high temperature and high pressure. Graphite insulation board has the characteristics of excellent thermal insulation performance, good fire resistance, high strength and stable size.

2 What is the use of graphite polystyrene insulation board?

Graphite polystyrene insulation foam board is widely used in building interior and exterior wall insulation systems;

1. Used for the insulation layer of building walls, roof insulation, and composite insulation panels;

2. Insulation materials for vehicles, ship refrigeration equipment and cold storage;

3. Used for decoration and engraving of various models.

4. Used as a protective layer for the waterproof layer.

SOHO Group specializes in providing high-quality graphite foam boards and customized solutions for various application requirements. As a professional extruded polystyrene board manufacturer, we have a wide range of products for you to choose from, including XPS extruded polystyrene board and XPS insulation compressive strength board. Contact us today for any of your needs.

3 Why to choose our graphite foam board?

Looking for an alternative to traditional insulation options? Consider graphite insulation board. Our products include graphite EPS insulation board, graphite XPS foam board and more. With options like 50mm grey polystyrene graphite EPS for external wall insulation, our products offer superior thermal properties and energy efficiency. Plus, our graphite polystyrene insulation options are lightweight and easy to install. Choose graphite insulation board for your next project and experience the difference in quality and performance.


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SOHO are looking forward to working with you.
16B Building #17 Huanke Middle Road Jinqiao Tech, Industry Base, Tongzhou District, Beijing, China

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