Abstract: The characteristics,features,classification,gradation and technical requirements of building sealants are described.The function for sealing building joints is briefly analyzed,and new standards are also introduced.

• 文摘:概述建筑密封剂的特征、特性、分类、分级和技术要求，对建筑接缝密封设定功能进行简要分析并介绍最新标准的情况。