Corrosion stands as a major challenge across most industries, incurring substantial annual costs. For decades, corrosion inhibitors have served as an effective solution in galvanizing industries. Inhibitors are additives that control corrosion by altering the metal surface, the environment, or both—achieved by modifying anodic, cathodic, or combined electrochemical reactions. A wide range of inhibitors with diverse compositions exist; most are formulated through rigorous testing and precise calculations, then refined empirically.

• Shimi Faravar Merik Company’s Corrosion Inhibitor:

In the hot-dip galvanizing industry, the interaction between molten zinc and the iron surface of components is compromised if oils, oxide scales, or other contaminants are present. Therefore, before immersion in molten zinc, surfaces must undergo thorough chemical and mechanical cleaning to remove all oils and oxide scales. One critical preparation step is acid pickling (deoxidation), where residual oxide scales from manufacturing are removed using acid. Typically, hydrochloric acid is used, though sulfuric acid at 60–70°C may also be employed. Acid concentration ranges from 10–20% (v/v), adjusted based on the extent of surface oxide scales. To mitigate pitting corrosion and reduce acid bath degradation, sufficient corrosion inhibitors must be added. Using Shimi Faravar Merik’s corrosion inhibitor prevents steel surface corrosion and acid-induced pitting. Additional benefits include:

• Reduced consumption of zinc and acid
• Lower emissions of hydrogen gas, acid vapors, and acid mist
• Extended service life (multiples longer) of immersion baskets and acid bath structures.

• Safety Precautions:

This substance is completely non-toxic and non-flammable.