Self-healing Anti-corrosion Coating for Zinc-Plated and Galvanized Steel

NEI Corporation recently introduced NANOMYTE® TC‐5001, a nanotechnology-enabled, single
component, clear coating that significantly improves the corrosion resistance of zinc‐plated and hot‐dip galvanized (HDG)
steel. It is amenable to dipping, brushing, and spray coating. The new coating technology is designed to protect zinc‐plated and
galvanized steel surfaces from rusting under severe environmental and operating conditions. Applications of the
coating technology include protecting outdoor structures (e.g., electrical grid structures, street lights, and lattice beams),
hardware (e.g., rods, pipes, nuts, bolts and screws), automotive components and farming equipment. The dense barrier coating
can be used as a standalone coating, as well as in combination with NANOMYTE® PT‐100, a self‐healing conversion coating. In
salt‐spray tests (SST, ASTM B117), uncoated zinc‐plated steel bolts exhibited white rust in 24 hours and red rust after 168
hours. In contrast, the NANOMYTE® coating provided significant corrosion protection, even after 504 hours of SST. Typically, TC-5001-coated parts show no white rust even after 1000 hours and no red rust even after 1200 hours. SST can be used in conjunction with field testing and online life predictors for coatings on HDG, as prescribed by the American Galvanizers
Association (AGA)

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