XPS foamed board ,has a perfect closed-pore alveolate structure.
its density,water absorption ,coefficient of heat and the coefficient of steam pervasion are all lower than those of other board heat preservasion materials.
they have the characteristics of strong intensity, light material, airtight, anticorrosion, aging resistance, low cost,etc.
it has been widely used in the fields of heat preservasion and heat insulation in the construction industry, frost resistant of the highway, railway, airport, aquare and household fitment. it is the generally acknioledged and the best prevesation material in the market at present.