Overview
EPS Graphite Polystyrene Board is an advanced insulation material that combines expanded polystyrene (EPS) with graphite particles to enhance its thermal performance. The graphite component reflects infrared radiation, significantly improving the material's insulation properties compared to standard EPS. This material has gained popularity in the construction industry due to its excellent thermal efficiency, ease of installation, and cost-effectiveness. It's particularly valued for passive house construction and energy-efficient building projects where superior insulation is required.
Physical and Chemical Properties
The graphite-enhanced EPS exhibits a thermal conductivity of approximately 0.031-0.034 W/(m·K), which is about 20-30% better than conventional white EPS. The grey color comes from the incorporated graphite particles that improve infrared reflection. Chemically, it maintains the stability of standard polystyrene but with reduced flammability. The material is hydrophobic, resisting water absorption that could compromise its insulating performance. Its compressive strength typically ranges between 100-200 kPa, suitable for most construction applications.
Main Applications
The primary application of EPS Graphite Polystyrene Board is in building insulation systems. It's used for external wall insulation (ETICS), inverted roof insulation, and floor insulation in both residential and commercial buildings. Beyond construction, it finds use in refrigeration systems, cold storage facilities, and as insulation for industrial equipment. Some specialized applications include use in packaging for temperature-sensitive goods and as core material for structural insulated panels (SIPs).
Safety and Storage
While generally safe, precautions should be taken during handling. Cutting the boards generates dust that should be controlled through proper ventilation or dust extraction systems. The material is classified as B-s1,d0 under EN 13501-1 fire standards when properly formulated. Storage requires protection from direct sunlight (UV radiation) and high temperatures that could cause deformation. Boards should be kept flat and covered when stored outdoors to prevent moisture absorption and wind damage.
B2B Procurement Guide
When procuring EPS Graphite Polystyrene Board, prioritize suppliers who provide complete technical documentation including fire classifications, thermal conductivity test reports, and durability certifications. Verify the graphite content percentage as this directly affects performance. Consider transportation logistics as the material is bulky but lightweight. Many suppliers offer just-in-time delivery to construction sites. Negotiate based on project volume, and inquire about custom board sizes to minimize waste during installation.
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