
8 TANK PROCESS CHEMICAL MANUFACTURER
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- Looking for a description or layout of a standard 8-tank pretreatment process?
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* Typical 8-Tank Process for Metal Pretreatment
Tank 1 – Degreasing (Alkaline Cleaner): Removes oils and dirt.
Tank 2 – Water Rinse 1: Rinses off degreaser and contaminants.
Tank 3 – Water Rinse 2: Ensures complete removal of cleaner.
Tank 4 – Derusting or Descaling: Removes rust or mill scale (acidic).
Tank 5 – Water Rinse 3: Rinse after acid treatment.
Tank 6 – Water Rinse 4: Final rinse before conversion coating.
Tank 7 – Phosphating or Zirconium Coating: Conversion coating for adhesion and corrosion resistance.
Tank 8 – Passivation/Sealing or Final Rinse: Stabilizes the coating and prepares for drying or painting. # 8 TANK PROCESS CHEMICAL MANUFACTURER.