As early as the 1980s, organosilicon materials were used in Hungary and the United States to make antifouling flashover coatings. Since then, Dow Corning company, Wacker silicon company, Wacker G.m.b.H company, Asahi Chemical Industry Co., Ltd. and other companies in the United States developed and produced one component room temperature vulcanized silicone rubber to solve the problems in the use of multi-component coatings, effectively improving the insulation surface Water repellency.

In the late 1980s, Tsinghua University developed multi-component RTV silicone rubber, and began to use it on insulators of power grids in Tianjin and Henan Province; in the 1990s, China also began to develop single-component RTV silicone rubber, because of its simple operation and excellent performance, it was quickly popularized and applied.

Room temperature vulcanized silicone rubber antifouling flashover coating is generally composed of room temperature vulcanized silicone rubber (base material), filler (filler) and auxiliary agent, which is modified by physical and chemical processes through the interaction of various components and functional groups. It has good high and low temperature resistance, weather resistance, electrical insulation performance, excellent hydrophobicity and hydrophobic mobility, but its mechanical properties such as tensile strength and The tear strength is poor, oil resistance, acid and alkali resistance are not enough.

For example, since the ± 660kV DC line of China's ultra-high voltage Yindong line was put into operation in November 2010, 5 pollution flashovers have occurred due to local unknown reasons, resulting in reduced voltage operation; after the room temperature vulcanized silicone rubber coating was applied in April 2012, the pollution flashover still occurred in early 2013, resulting in reduced voltage operation; in April 2013, the reinforced room temperature vulcanized silicone rubber coating was re applied, but it still occurred in early 2014 Partial pollution flashover results in depressurized operation. This shows that in some environments, RTV silicone rubber antifouling flashover coating can not play the expected antifouling flashover effect.