PR-138-162-R02 Degree of Reaction of Fusion-Bonded Epoxy Coatings

This document describes a test method for the degree of reaction of fusion-bonded epoxy coatings by direct-current resistivity. This method covers the determination of a transition temperature of cured fusion-bonded epoxy coatings by measurement of the changes in direct-current resistivity of the coating with temperature. Comparison of this temperature with the degree of reaction for that coating material as determined by differential scanning calorimetry will allow the estimation of the degree of reaction of the coating sample being tested.