Metallographic replication is a nondestructive method of imprinting and preserving the metallographic structure of an object or specimen on a cellulose acetate substrate or plastic film. Through an appropriate cleaning process, conducted by manual, mechanical or electrolytic operations, the surface to be examined is prepared and then a moistened plastic film is adhered to it by means of a suitable solvent (acetone or methyl acetate). After the film has dried, it is removed and placed in a slide so that it is protected from damage due to transport and storage and facilitates its inspection under a microscope.