ELECTRONIC SURFACE TREATMENT MATERIAL SUPPLIER

Cleaning & Passivation of Alum

Aluminum cleaning and passivation is a critical pre‑treatment sequence for aluminium and aluminium‑alloy parts. It removes surface soils, natural oxide films and intermetallic contaminants, then builds a thin, inert protective conversion film. This treatment improves corrosion resistance, enhances paint / powder‑coating / plating adhesion, and stabilises aluminium surfaces for subsequent assembly or finishing operations. The workflow consists of **alkaline cleaning → rinsing → acid desmutting → rinsing → passivati...