Blog
Practical notes from the plating floor on zinc and trivalent finishes, testing standards and how to specify corrosion protection for automotive and engineering components.
· 3 min read
Salt spray hours are quoted on almost every plating specification, yet they are widely misunderstood. What the test measures, what "white rust" and "red rust" mean, and how to use the numbers sensibly.
Read article
· 3 min read
Hexavalent chromium is restricted under RoHS and the EU End-of-Life Vehicle directive. Trivalent (Cr3+) passivation delivers a compliant zinc plated finish without sacrificing corrosion protection.
Read article
· 3 min read
Both finishes start with the same electroplated zinc layer. The passivation on top decides colour, corrosion life and cost. Here is how to choose for automotive and engineering components.
Read article