White Rust on Galvanized Steel Contamination

Galvanize-corrosion contamination, it manifests as zinc carbonate and hydroxide layers on galvanized steel and zinc-coated metal, forming through moisture exposure that initiates electrochemical reactions. This pattern, it distinguishes itself from rust by its white, powdery tenacity, which adheres more firmly, influenced from prolonged humidity, and behaves variably—persisting tenaciously on zinc surfaces while exhibiting less grip on underlying steel. Key removal challenges arise from its protective yet stubborn bond, yet laser cleaning proves effective, as the process selectively ablates these layers without substrate harm.