Extruded Polystyrene XPS Foam Board

Extruded Polystyrene XPS Foam Board | X150–X500

XPS Extruded Polystyrene Insulation Board

SHENZHOU XPS extruded polystyrene board is a rigid, closed-cell foam board developed for construction applications where thermal performance, low water absorption and compressive strength must be considered together. The series includes X150, X200, X250, X300, X350, X400, X450 and X500 grades, with published compressive strength ranging from ≥150 kPa to ≥500 kPa.

These XPS extruded polystyrene boards can be specified for wall and roof insulation, cold-storage floors, prefabricated buildings, parking platforms and selected infrastructure projects.

Why Use Closed-Cell XPS Extruded Polystyrene Board?

Low Water Absorption

The closed-cell structure limits water penetration, helping the board maintain its insulation function in roofs, cold-storage floors, foundations and other assemblies exposed to moisture. The product should be described as having low water absorption rather than zero water absorption.

Application-Specific Compressive Strength

Eight grades allow buyers to select the XPS board according to the anticipated load. This is particularly important for cold-storage floors, parking platforms, load-bearing floor assemblies and infrastructure applications.

Stable Thermal Insulation

The published thermal conductivity range of 0.027–0.034 W/(m·K) supports the use of the board in energy-efficient building envelopes. Required thickness should be calculated according to the target thermal resistance or U-value of the complete construction system.

Rigid and Lightweight Board Format

XPS rigid foam insulation board can be cut and arranged into regular installation layouts while adding less weight than many conventional insulation materials. The selected fixing method, joint treatment, waterproofing and protective layer must be compatible with the complete assembly.

XPS Compared with Other Insulation Materials

Model	X150	X200	X250	X300	X350	X400	X450	X500
Thermal conductivity coefficient (W/m·K)
Dimensional stability (%)	≤1.5
Color	Blue (pink / grey / white)
Application temperature range	-50 ℃ ~ +75 ℃
Compressive strength (kPa)	≥150	≥200	≥250	≥300	≥350	≥400	≥450	≥500
Water absorption (%)
Density (kg/m³)	25-30		30-33		33-36		36-40
Oxygen index (%)	≥30
Combustion grade	B1

- ♦ Choose XPS when the project requires rigid insulation, low water absorption and a specified compressive-strength grade.

- ♦ Consider rock wool insulation when fire performance, high-temperature resistance or acoustic control is the primary requirement.

- ♦ Review glass wool insulation for lightweight thermal and acoustic insulation in buildings and HVAC systems.

- ♦ Use rubber foam insulation for flexible HVAC, refrigeration and pipe-insulation applications where condensation control is important.

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