The selected answer highlights low humidity as a common reason for the failure to cure when using solvent borne inorganic zinc. Inorganic zinc coatings typically rely on a reaction with moisture in the environment to facilitate curing and develop their protective properties. If the humidity levels are too low, this reaction may be inhibited, leading to incomplete curing of the coating.
Moisture plays a crucial role in the formation of the protective zinc layer; without adequate humidity, the curing process is compromised, and the coating may remain soft or tacky, failing to adhere properly or provide the desired level of protection.
While factors like excessive temperature, improper mixing ratios, and inadequate surface cleaning can contribute to issues in coating application, low humidity specifically impacts the curing process of solvent borne inorganic zinc coatings, making it a significant concern.