Finish Guide
Blue Zinc Plating Is Zinc + Clear/Blue Passivation
Blue zinc plating is a common finish in industrial production where cost-effective sacrificial corrosion protection and a clean metallic appearance are required for fasteners and hardware.
Passivation Colour Options at a Glance
Blue (Clear)
Most common finish for general-purpose corrosion protection with clean, metallic appearance.
Yellow
Often selected when visual differentiation and stronger passivation appearance are required.
Black
Chosen for specification-driven appearance requirements and certain industrial assemblies.
How to Specify Blue Zinc Correctly
For procurement and QA teams, a clear RFQ should include base material, part function, coating class, finish type, corrosion expectation, and any relevant standard reference (for example ASTM B633).
If environmental severity is higher, compare against zinc nickel plating to evaluate performance margin.
Related Technical Pages
REQUEST A QUOTERelated Pages
Zinc Plating Services
Parent page covering process capabilities and finish options.
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