The following paper outlines the significance and methodologies defined in ASTM D2092, a historical cornerstone for the preparation of galvanized surfaces before painting.
Method C: Acrylic PassivationThis method uses acidic acrylic polymers to treat the surface. It is frequently used in continuous coil coating lines for high-speed production. astm d2092 pdf
A basic removal of oils and greases using wipe-down solvents. This is rarely sufficient on its own for long-term adhesion but is a necessary first step for other methods. Method F: Pickling Procedure: Spray clean water over the surface