1. Degreasing
- Removes oil, grease, and other organic contaminants from the metal surface using an alkaline cleaning solution.
- Ensures a clean base for further treatment.
2. Water Rinse 1
- Removes residual alkaline solution and loosened contaminants.
3. Derusting / Pickling
- Uses acid-based solutions to eliminate rust, scale, and oxides from the metal surface.
- Restores the natural metallic finish.
4. Water Rinse 2
- Washes away acid residues and prepares the surface for phosphating.
5. Phosphating
- Applies a zinc or iron phosphate coating to enhance paint adhesion and corrosion resistance.
- Creates a microcrystalline surface ideal for coating.
6. Water Rinse 3
- Cleans residual phosphate chemicals to ensure uniform coating quality.
7. Passivation
- Applies a chromic or non-chromic sealant to improve corrosion resistance and durability.
- Final step before drying and painting/powder coating.
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