鉴定工业上重要的双涂层系统的混合比例
Protective coatings are commonly applied to automobiles, aircrafts, ships, railways,furniture, bridges, concretes, architectural constituents, industrial installations, andmany other products that we encounter on a daily basis. Coating application in many of these products is primarily implemented to provide protection against harshenvironments such as UV light, extreme temperatures, acid, alkali, salt, water, and so forth, and to improve the aesthetic appearance of finished products.A wide variety of coating formulations exist in the market their use depends on theperformance requirement of the final product. Coatings may be applied to the productsas a primer basecoat, a mid-coat, or as the topcoat. For example, polyurethanecoating is applied on top of epoxy primer coating to prevent the discoloration ofepoxy from UV and to provide the specified color and sheen.