Fluorozirconic acid

Fluorozirconic acid (CAS 12021-95-3), also known as hexafluorozirconic acid, is an inorganic acid used industrially as a surface treatment and metal finishing agent.

Where is Fluorozirconic acid used?

• Metal pretreatment: forms thin zirconium oxide conversion coatings on aluminum, steel, and galvanized surfaces prior to painting
• Metal finishing: deposits zirconium-based conversion coatings
• Corrosion resistance and adhesion promotion without chromium-based chemistry
• Electronics: etching and surface conditioning of metal components where controlled oxide layer formation is critical
• Water treatment: pH-regulating and complexing agent in specific process streams
• Textile and leather processing: fixing and surface modification agent to improve fiber bonding and finish durability
• It serves as a direct chromate-free alternative increasingly required by automotive and appliance OEMs.

Commercial specifications

• Aqueous solution, 45% concentration most commonly traded
• Concentration and purity specifications vary by application requirement
• Bulk liquid supply in IBC containers or drums