Abstract
AbstractGraphene has emerged as a promising additive for improving the corrosion resistance of organic coatings due to its planar structure and low permeability. Multiple publications have reported positive results, primarily because of its barrier qualities. However, the incorporation of graphene into commercial coatings has not been studied in great detail, as the limited availability of commercial‐grade graphene has hindered its widespread use. This study investigates the addition of a commercially available graphene additive to a commercial primer, using industry‐standard corrosion tests and advanced characterization techniques to evaluate the coating's performance. The results show that while the addition does improve the barrier properties of the coating, as shown in salt spray tests, it also reduces its functionality due to factors such as oxygen reduction on graphene and accelerated diffusion pathways. Overall, the cost of incorporating graphene may outweigh the limited benefits observed in this study. These findings underscore the need for further research to explore the potential of graphene and the importance of utilizing multiple testing methods for performance evaluation.
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