Emery Paper

Intermediate Polishing – After the previous processes the specimen is polishing on a series of emery paper containing successively finer abrasive ( Si- C) . The first paper is usually no. 1 than 1/ 0, 2/0, 3/0, & finally 4/0.. The intermediate polishing operation using emery paper is usually done dry. However in certain case such as preparation of soft material, Silicon Carbide has greater removal rate & as it is resin bonded , can be used with a lubricant , which prevents overshooting of the sample, minimizes shearing of soft metals & also provides a rising action to flush away surface removal product so the paper will not be clogged.