承包商能从许多不同的方法中任选一种为混凝土着色。一般来讲,着色密封材料和化学染色剂是富有吸引力的选择。首先是因为这些染色荆既能应用于新拌制的混凝土,也能为老的混凝土着色;其次是因为这两种材料能让被染物自然透气,允许湿气自由流动。然而,密封材料和染色剂所起的作用有很大的不同。染色剂可以有效地为整个混凝土表面抛光,但它本身并不防水。而着色密封材料既能保护混凝土又能给混凝土染色。由于这些产品尚无通用的工业技术标准,一些厂家把染色剂和着色密封材料交替着使用。为了帮助用户选择满足其要求的最佳产品,有必要把化学染色剂和着色密封材料区别开来。下面将对每种产品进行单独的论述。 The contractor can color concrete in any of a number of different ways. In general, colored sealants and chemical stains are attractive options. The first reason is that these dyeings can be applied to newly-mixed concrete as well as to the old concrete; secondly, these two materials can allow the dyed material to naturally breathe and allow the free flow of moisture. However, the role played by the sealing material and the coloring agent is quite different. The stain can effectively polish the entire concrete surface, but it is not waterproof by itself. The colored sealing material can both protect the concrete and stain the concrete. Since there are no general industrial technical standards for these products, some manufacturers use dyes and coloring sealants alternately. In order to help users choose the best product that meets their requirements, it is necessary to distinguish between chemical stains and coloring sealants. Each product will be discussed separately below.