This product is used for the preparation of electro-galvanized (blue) white passivation solution is a colorless liquid preparation is the latest generation of chromium-free passivation products. Technologically advanced, easy to use, is a mature product of a real alternative to the passivation of the chromium salt. Passivation stable performance, the effect is obvious, showing a silver-white or slightly blue passivated galvanized. The salt spray for more than 24 hours.