Session: Corrosion and Corrosion Testing of Additively Manufactured Materials
Cracking the code of corrosion, Glass Flakes in high-performance epoxy systems (C2026-00240)
Monday, March 16, 2026
11:00 AM - 11:30 AM Central
Location: 342 C
Earn .5 PDH
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Epoxy coatings are widely used in industrial applications due to their excellent adhesion, chemical resistance and mechanical properties. These coatings are often enhanced with other materials to improve performance under harsh environment conditions. One such material is glass flakes, which are thin, plate-like particles that can be incorporated into the epoxy matrix to improve barrier properties and reduce corrosion. This study investigates the impact of incorporating different types and concentrations of glass flakes into ultra-high solid epoxy coatings, specifically focusing on their effect on anticorrosion performance. Two types of glass flakes, thin and thick, were evaluated across a range of concentrations. The coatings were subjected to various tests including cyclic ageing, blister box exposure, seawater immersion, cathodic disbonding and adhesion. The findings indicate that addition of glass flakes significantly reduces corrosion creep with thinner flakes showing greater effectiveness at lower concentrations. Adhesion remained high across all formulations, and no internal stress was observed. However, increased glass flake content can hinder some solvent evaporation, affecting cohesive strength in multi-coat systems. These results support the use of glass flakes as a viable strategy to enhance the durability and performance of epoxy coatings in corrosive environments but the concentration should be the optimal.
