The mould release agent is made of high quality materials. It has the advantages of fast evaporation and high efficiency. It can be reused many times without sticking. Can effectively solve the resin sand, water glass sand, oil sand, grease sand and other sticky mold problems, suitable for sprayed or brush to the mold or core box surface, the first brush 2-3 times, after each brush, volatilization 5～20 minutes can be modeled, once each brush can be used 5-15 times depending on the degree of complex or type of pattern.