《建筑装饰工程施工及验收规范》(JGJ 73—91)第4.2.5条规定:“镶嵌条、定位垫块和隔片、填充材料、密封膏等的品种、规格、断面尺寸、颜色、物理及化学性质应符合设计要求。上述材料配套使用时,其相互间的材料性质必须相容。”但《建筑施工手册》中要求密封材料可选用硅酮胶、聚硫胶、聚氨酯胶、丙烯酸酯胶等,却未规定其酸碱性。而在实际操作中却存在使用 Article 4.2.5 of the Code for Construction and Acceptance of Building Decoration Engineering (JGJ 73-91) states: “Species, specifications, cross-sectional dimensions, color, and physical properties of inlay strips, spacer and spacer, packing material and sealing compound And chemical properties should meet the design requirements.When the above materials are used in combination, their material properties must be compatible with each other. ”However, the“ Construction Manual ”requires that the sealing material be made of silicone rubber, polysulfide rubber, urethane rubber, acrylate Glue, etc., but did not provide its acid-base. In practice, however, there is use