Beijing SOHO Building Materials Group Co.,Ltd.

The Performance and Applications of Graphite EPS Insulation Board

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    What is Graphite EPS Insulation Board?


    In today's era where building energy efficiency is increasingly emphasized, choosing efficient and environmentally friendly insulation materials has become one of the core elements of green buildings. Graphite EPS insulation board, as an "advanced version" of traditional EPS (Expanded Polystyrene), is gradually replacing ordinary insulation materials with its superior thermal insulation performance and stability, becoming an ideal choice for external wall insulation, roof insulation, and other systems.


    Graphite EPS Insulation Board is a new type of insulation board made by adding high-purity graphite particles to ordinary EPS. Graphite particles have excellent infrared reflection capabilities, which can effectively block thermal radiation and improve the insulation effect. Therefore, Graphite EPS is also called "gray insulation board" or "graphite polystyrene board."


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    Core Performance Advantages of Graphite EPS Insulation Board


    Lower Thermal Conductivity: More Significant Energy Saving


    Compared to traditional white EPS, the thermal conductivity of graphite EPS insulation board can be reduced by about 20% (generally 0.030~0.032 W/m·K), significantly enhancing the insulation effect. At the same thickness, it can provide a higher thermal resistance value; or it can use thinner boards to achieve the same insulation effect, saving space and materials.


    Lightweight and High Strength: Convenient Construction


    Graphite EPS insulation board has moderate density and light weight, making it easy to carry and cut into shape, fitting various walls and structures, thereby significantly improving construction efficiency. At the same time, it has good physical stability, is not easily deformed, and does not absorb water, ensuring stable long-term performance.


    Strong Resistance to Thermal Radiation: Adaptable to Extreme Climates


    The carbon structure in graphite particles can reflect and absorb some infrared radiation, effectively preventing heat from penetrating the board. It performs particularly well in high temperatures during summer or extreme cold in winter, making it widely used in passive houses and high-demand energy-saving projects in cold regions.


    Strong Compatibility: Suitable for Various External Insulation Systems


    Graphite EPS insulation board can be used in thin plaster exterior wall insulation systems (ETICS), cold storage walls, roof insulation, and interior wall energy-saving renovations. It is widely compatible with adhesives, mortars, rendering materials, and finishes, making it a "universal base" for building exterior insulation.


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    Wide Application Fields of Graphite EPS Insulation Board


    • Residential Buildings: Enhances living comfort and saves energy.


    • Commercial and Public Buildings: Meets high standards for thermal performance in large projects.


    • Industrial Plants and Cold Storage: Strengthens insulation sealing and reduces energy loss.


    • Old House Renovation and Insulation Layer Addition: Lightweight and efficient, flexible construction without disturbing residents.


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    Conclusion


    With its outstanding thermal performance, ease of construction, and environmental properties, Graphite EPS insulation board is gradually becoming representative of the new generation of high-performance insulation materials. Under the background of the “dual carbon” goal, it not only helps buildings achieve energy-saving goals but also provides strong technical support for promoting green and sustainable development. In the future, with further advancements in material technology, graphite polystyrene boards will play a key role in more high-performance buildings.


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    Products Information


    AttributeDetails
    Product NameGraphite XPS Insulation Board
    ManufacturerBeijing SOHO Building Materials Group Co., Ltd.
    MaterialGraphite-enhanced, fluorine-free, bromine-free extruded polystyrene (XPS)
    Thermal Conductivity≤0.021 W/m·K, ensuring superior thermal insulation
    Dimensional Stability≤0.8%, preventing deformation and ensuring long-term performance
    Compressive StrengthHigh, suitable for load-bearing applications (e.g., under slabs, foundations)
    Production TechnologyPatented Low Internal Stress Technology, CO₂ foaming, twin-screw extrusion
    Production EquipmentAdvanced imported lines (KraussMaffei, Germany) with multiple foaming process
    Environmental FeaturesNon-toxic, no CFCs/HCFCs, eco-friendly, recyclable, low environmental impact
    CertificationsCE, ISO 9001, ISO 14001, ISO 45001
    ApplicationsResidential/commercial construction, vehicle/ship insulation, cold storage, decorative modeling, waterproof layer protection
    BenefitsEnhanced thermal efficiency, uniform density, lightweight, easy installation, cost-effective


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