1. Extruded board: building roof insulation, steel roof insulation, building wall insulation, building floor moisturizing, square floor, ground frost heave control, central air conditioning ventilation pipes, etc.
2. Foam board: mainly used for building wall, roof insulation, composite board insulation, cold storage, air conditioning, vehicle and boat insulation, floor heating, decoration and carving, etc.
Second, the characteristics are different.
1, extruded board: excellent thermal insulation performance, excellent high-strength compressive performance, excellent hydrophobicity and moisture resistance, light texture, convenient use, good stability, corrosion resistance and good environmental protection performance.
2. Foam board: maintain the main layout of the building and extend the service life of the building. Because the external insulation is to place the insulation layer outside the layout, it reduces the stress of layout deformation caused by temperature change and reduces the corrosion of harmful substances in the air and ultraviolet rays on the layout.
Third, the raw materials are different.
1. Extruded board: a rigid foamed plastic board made of polystyrene resin, other raw materials and polymers, which is heated and mixed, injected with catalyst at the same time, and then extruded. Its scientific name is extruded polystyrene foam (XPS) for thermal insulation. XPS has a perfect closed-cell honeycomb structure, which makes XPS board have extremely low water absorption (almost no water absorption), low thermal conductivity, high pressure resistance and aging resistance.
2. Foam board: EPS board is a white object made of expandable polystyrene beads containing volatile liquid foaming agent, which are preformed by heating and then heated in a mold.
Baidu encyclopedia -EPS foam board
Baidu encyclopedia -XPS extruded board