挤塑板全称挤塑聚苯乙烯泡沫板，简称挤塑板，又名XPS板。是以聚苯乙烯树脂辅以聚合物在加热混合的同时，注入催化剂，而后挤压出连续性闭孔发泡的硬质泡沫塑料板。
挤塑板的防水性和防潮性是一大特点，本身完全不吸水，充分避免出现漏水、渗透、结霜、冷静等等其他板材经常会发生的问题。
挤塑板的质地比较轻，使用和操作非常简单便捷，在运输、安装和切割过程中也不容易发生损坏。更为难得的是挤塑板的环保性能非常好，化学性质很稳定，不会挥发出任何有害物质，对人体和周围环境不会产生不良影响，整个生产制造和使用过程都不会造成任何工业污染。
挤塑板由于是通过连续挤压所致的紧密闭孔式结构，因此密度、吸水率、导热系数和蒸汽渗透率方面的表现都大大高于其他板材。挤塑板的保温隔热性更是其制胜的比较大法宝。挤塑板的闭孔率达到了99%以上，能够形成真空层，充分避免空气流动产生的热量损失，保证其保温效果的稳定性和持久度。

The extruded panel is known as extruded polystyrene foam board, or XPS board. It is a rigid foam board with polystyrene resin and polymer heated and mixed into the catalyst and extruded continuous closed cell foam.            The water-proof and moisture-proof properties of extruded board are the same. It does not absorb water at all. It fully avoids the problems that often occur in other boards, such as water leakage, penetration, frost, calmness, etc.            The extruded board is light in texture, easy to use and operate, and not easy to be damaged in the process of transportation, installation and cutting. What's more, the environmental protection performance of Extrusion board is very good, the chemical property is very stable, it will not volatilize any harmful substances, it will not have adverse effects on human body and the surrounding environment, and the whole production and use process will not cause any industrial pollution.            Due to the close closed cell structure caused by continuous extrusion, the density, water absorption, thermal conductivity and steam permeability of extruded plates are much higher than those of other plates. The insulation of extruded board is the biggest magic weapon to win. The closed porosity of extruded board is more than 99%, which can form a vacuum layer, fully avoid the heat loss caused by air flow, and ensure the stability and durability of its insulation effect.