Coating barrier film and method for preparing same

The invention relates to a coating isolating film and a preparation method thereof; PVC, high chlorinated polyethylene, dimethylbenzene, engine oil, manganese naphthenate and other 5 raw materials are selected; dissolution, medium-speed dispersion, detection and filtration production processes are adopted; the coating isolating film solves the defects of the prior coating isolating methods, such as paper adhesion, tape adhesion or butter application, etc. can be used for the coasting and isolating of coatings dried at normal temperature or below 120 DEG C in the forms of brush coating or spray coating, is simple to be constructed, suitable for a plurality of types of materials, has strong adaptability and high promotion and application value.