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现代美国建筑大量使用结构尺寸误差很小的轻质构件,使得建筑密封膏得以广泛应用。有些密封膏,特别是高性能密封膏,价格虽然很昂贵,但由于其使用量很小,因而对建筑物造价的影响还是微不足道的。表1根据密封膏的性能分类并概括了目前在美国常用的一些建筑密封膏。其中不包括用于电气设备和道路路面的密封膏,也还有一些建筑用的密封膏没有列在表内,例如氯丁二烯橡胶和氯磺酰化聚氯乙烯合成橡胶。应当指出,对于各类产品,不同制造商的产品其性能之间存在着很显著的差别,有些制造商的产品还可
Modern American buildings make heavy use of lightweight components with a small structural error, making building sealants widely available. Some sealing pastes, especially high-performance sealing pastes, are expensive, but due to their small usage, the impact on the building cost is still negligible. Table 1 categorizes and summarizes some of the building sealants currently used in the United States based on the properties of the sealant. It does not include sealants for electrical equipment and road surfaces, but there are also some architectural sealants that are not listed in the table, such as chloroprene rubber and chlorosulphonated polyvinyl chloride synthetic rubber. It should be noted that there is a significant difference in the performance of different manufacturers’ products for various types of products, and some manufacturers’ products