What might be a consequence of inadequate surface preparation before galvanizing?

Inadequate surface preparation before galvanizing can lead to corrosion of the steel substrate. Proper surface preparation is critical because it ensures that any contaminants, such as oils, dirt, rust, or existing paint, are removed before the galvanizing process takes place. If the surface is not adequately cleaned and prepared, the zinc coating applied during galvanizing may not adhere properly to the steel.

This poor adhesion can create voids and pockets where moisture and other corrosive elements can become trapped. Over time, these areas can lead to the deterioration of the steel substrate due to rust and corrosion. Therefore, ensuring thorough surface preparation prior to galvanizing is essential to enhance the longevity and effectiveness of the protective zinc coating, preventing corrosion and extending the life of the steel structure.