ECP, a slow leveling agent, is characterized by high resistiveness, slow evaporating rate, good liquidity and leveling property. When applied in spray paint, it can improve gas release and performance effect with low water solubility. ECP is mainly used as solvent of original and refinishing coating for automobiles, electronic paint, can coating, wood paint, marine coating, metal and furniture spray paint, and brush paint. It can also be used as solvents of protective paint, dyestuff, resin, leather, printing ink; used in the cleanser formula of hard surface of metal, glass, etc.; and used as chemical reagent.