A national standard achieves an industry




In the 1990s, China's construction industry blew a wind of glass curtain walls. The novel building materials gave people a magnificent and magnificent feeling, and became the standard for “tall” buildings in major cities. However, due to the quality of the silicone sealant, the curtain wall glass often falls from a height and hurts pedestrians. In order to regulate the market, in 1996, the State Economic and Trade Commission led the establishment of a leading group of silicone structural adhesives, with an expert group of silicone structural adhesives. Wang Yuelin, then the deputy director and chief engineer of Guangzhou Baiyun Adhesive Factory, became the youngest of the expert groups. Member, he is both excited and deeply responsible: "This work has a bearing on the development of two major industries, one is the glass curtain wall construction industry, and the other is the silicone sealant industry. I must live up to the trust of the leaders and do the work "Our first job is to speed up the formulation of mandatory national standards for silicone structural adhesives." Wang Yuelin said, "At that time, the United States already had ASTM C1184" silicone structural sealants. " , Proposed higher technical indicators than the US standard, such as increasing the tensile bond strength of structural adhesive to 0.45MPa; set the bond failure area requirements, especially the bond failure area after water immersion is set to no greater than 5 %. "In 1997, GB16776-1997" Silicon Sealants for Buildings "was officially released. Based on this, the leading group of silicone structural adhesives began to implement the production certification system, and the market began a wave of sand washing. Advanced technical indicators not only blocked the way out of domestic substandard products, but also rejected imported products that did not meet the standards. Several Dow Corning and General Electric brands that were popular in the country at the time were banned from sales and use because they failed standard tests. The myth of foreign products is broken, the freed up market space is quickly replaced by domestic high-quality brands, and the national industry of silicone structural adhesives has ushered in the spring of development, and the entire silicone construction sealant industry has also benefited from this.