EP as the matrix of the polymer/ceramic rcsistable erosion coat, its application becomes more and more extensive; the research of touphening epoxy-resin has high value in the field of practice and theory; there is little report about the research of the characteristics of resistance-erosion wear of epoxy-resin, so it's very valuable in the field of theory and production. Two main section is included in this paper, the first part is the research about the theory and the effect of the toughening-EP with organ...