Graphite Extruded Polystyrene (SXPS) is a high-performance thermal insulation material. Its main raw material is polystyrene resin, with added graphite powder and additives. It is formed into a honeycomb-like closed-cell structure through a special extrusion process. Its main characteristics and applications are as follows:

I. Core Characteristics
Excellent Thermal Insulation
With a thermal conductivity as low as 0.026–0.028W/(m·K), the graphite particles enhance thermal reflectivity, resulting in significantly better insulation than traditional extruded polystyrene boards.
High Compressive Strength and Moisture Resistance
Closed-cell rate is above 99%, with high compressive strength and extremely low water absorption (＜1%), ensuring stable performance in long-term humid environments.
Environmental Protection and Durability
CO₂ foaming technology is used instead of Freon, reducing ozone layer depletion; its physical properties are stable, with a service life exceeding 50 years.
Fire Performance
Some products can achieve a B1 fire rating (flame-retardant material) through modification, enhancing building safety.

II. Application Scenarios
Building Insulation
Exterior wall/roof insulation layer
Basement moisture and heat insulation
Integrated insulation system (such as patented fixed airbag structure).
Underfloor Heating System
Used as a dedicated insulation layer for underfloor heating, reducing downward heat loss.
Cold Chain and Industrial Applications
Refrigerated trucks, cold storage insulation, solar system insulation layer.
Special Engineering
Plaza ground, road and bridge engineering (compressive resistance and anti-settlement).