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When ketone oxime silica gel is used in closed systems, such as lighting, car lamps, and other industries, it sometimes produces a phenomenon similar to "gas dew" on the inner surface of glass, which greatly reduces the transparency of glass and affects its transmittance and aesthetics. This is due to the fact that the butanone oxime released during the curing of the degreased silica gel in a closed system cannot be discharged into the atmosphere in a timely manner and is accumulated and adhered to the surface of the glass; Using dealcoholized silica gel can easily avoid such aerosol phenomena, as the product released during solidification is an alcohol substance, which is a gas at room temperature and does not accumulate and adhere to the glass surface.