Graphite EPS bead sample
Graphite EPS bead sample
Graphite EPS bead sample
Graphite EPS bead sample
Graphite EPS bead sample
Graphite EPS bead sample

Graphite EPS — S Grade

S-grade graphite EPS incorporates natural flake graphite into polystyrene through extrusion. Graphite absorbs and reflects radiant energy within the expanded bead structure, improving thermal-insulation performance. The range is intended for external-wall insulation and energy-saving building applications.
  • Extrusion process with natural flake graphite
  • Low thermal conductivity
  • Good dimensional stability; Insulation-board production

Product Information

Graphite EPS — S Grade

S-grade graphite EPS incorporates natural flake graphite into polystyrene through extrusion. Graphite absorbs and reflects radiant energy within the expanded bead structure, improving thermal-insulation performance. The range is intended for external-wall insulation and energy-saving building applications.

External-Wall Insulation

S-grade graphite EPS is intended for external-wall insulation and energy-saving building applications. Graphite within the expanded bead structure absorbs and reflects radiant energy to improve insulation performance.

Product Features

  • Extrusion process with natural flake graphite
  • Low thermal conductivity
  • Good dimensional stability
  • Insulation-board production

Extruded Graphite Formulation

Natural flake graphite is incorporated into polystyrene through extrusion. The S101–S401 specifications cover molded-density ranges from 15–25 to 25–35 kg/m³, with a listed thermal conductivity of ≤0.034 W/m·K.

Technical Specifications

Graphite EPS — S Grade specifications
Grade Application / positioning Molded density (kg/m³) Bead size (mm) Thermal conductivity λ (W/m·K)
S101 Graphite General-Purpose 15–25 1.30–1.60 ≤0.034
S201 Graphite Medium 18–28 1.00–1.40 ≤0.034
S301 Graphite Fine-Bead 20–32 0.75–1.10 ≤0.034
S401 Graphite Micro HD 25–35 0.50–0.80 ≤0.034

Discuss Your Requirements

Specify the S-series code, bead size, target molded density, intended insulation system and required test documentation. Include the applicable fire-performance criteria for the finished application.

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