In ship's ballast tanks, most of coating failures (and corrosion attacks) were observed on sharp steel edges, welds seams and weld spatters. One solution is to employ high solid coating material with less tendency to flow away from edges. In this study, two coatings are selected and evaluated in terms of their edge retention ability.
This paper will outline the results of using CNTs in liquid applied coatings, resulting in the elimination of secondary surface preparation steps such as grinding, chamfering, and rounding of edges as well as eliminating the need to apply a stripe coat. The overall impact realized from the elimination of these process steps include, increased productivity, increased throughput, improved edge coating performance, and substantial lowering of project costs.