A New Approach for Determination of Wet Adhesive Strength of Epoxy Coatings on Steel Substrate

A standardized scratch test methodology (ASTM D7027-05 and ISO 19252) was employed to determine the adhesive strength of fusion-bonded epoxy (FBE) coating on steel. Finite element method (FEM) modeling was carried out to simulate the scratch process. Correlation between the experimental findings and FEM modeling allows for quantitative assessment of the adhesive strength of FBE coating on steel substrate. The proposed test method for evaluation of adhesive strength of FBE coatings on steel substrate appears promising.