树脂瓦的面层材料最为关键，合树脂瓦的好坏，还与表面材料的使用量，和共挤技术有关系。面层材料的选用直接影响 树脂瓦的使用寿命，恒兴树脂瓦选用优秀的超耐候材料ASA，通过表面共挤最后成型。标准的合成树脂瓦可以长期抵御酸，碱，盐等各种化学物质腐蚀，实验浸泡盐，碱及60%以下各种酸中24小时无化学作用。产品的耐候性直接导致了合成树脂瓦的使用寿命。
The surface material of the resin tile is the most important. The good or bad of the resin tile is also related to the use of the surface material and the coextrusion technology. The surface layer material directly affects the service life of the resin tile, tile with super weatherability Hengxing resin materials ASA excellent, through the surface and finally forming extrusion. The standard synthetic resin tile can resist corrosion of acids, alkalis, salts and other chemical substances for a long time. It has no chemical effect in 24 hours after immersion in salt, alkali and 60% kinds of acids. The weatherability of the product directly leads to the service life of the synthetic resin tiles.
劣制的合成树脂瓦面层采用其颜料会产生化学反应，甚至产生严重褪色。
The use of the pigments of the inferior synthetic resin tile surface can produce chemical reactions and even produce severe discoloration.