Homogeneous board is a kind of fireproof and thermal insulation material, which is made of silicon and calcium minerals, modifiers, expanded polystyrene foam particles, other additives, water, stirring evenly, pressing with a mold, and later curing. Extruded board is a material that is continuously extruded and foamed by a special process. The hard film formed on its surface is even and flat, and the internal closed-cell foam is continuous and even, showing a honeycomb structure, so it has the characteristics of high compression resistance, light weight, no water absorption, good air tightness, wear resistance and no degradation.

The main uses of extruded board are: widely used for wall insulation, concrete flat roof and steel structure roof insulation; Used for moisture-proof and thermal insulation in low-temperature storage ground, parking platform, airport runway, expressway and other fields.