In this study, a two dimensional finite element method (FEM) simulation is carried out for the calculation of the potential and the electrical fields through polymeric insulators. Prior to modeling, the samples are aged as indicated by the ASTM D2303 test standard. Different tracking patterns occurring after the aging test are used for modeling. The electrical field distribution on the polymeric sample surface is investigated in terms of the tracking behavior based on whether it is tracked or eroded. The theoretical results obtained from the FEM simulations suggest that the way that the liquid contaminant is used has a vital effect on the electric field distribution of the sample surface. Copyright (C) 2011 Praise Worthy Prize S.r.l. - All rights reserved.