Electroplating is the most widely used surface finishing process in bag hardware, and the one most frequently misunderstood by buyers.
How does it work?
It works by passing an electric current through a solution, depositing a thin layer of metal: typically nickel, copper, gold, silver, or chrome, onto the base material. The result is a smooth, consistent, metallic finish that can be polished to a high shine, brushed to a matte effect, or treated to achieve antique and oxidized looks.
Thickness & Longevity
What makes electroplating both popular and problematic is the thickness. A standard decorative plating layer is typically between 0.1 and 0.5 microns. At that thickness, it looks exactly right, but it also means the finish has a finite lifespan, particularly in high-friction areas like swivel points, buckle edges, and zipper pulls.
Finish longevity depends on three factors: the quality of the base material preparation, the thickness and composition of the plating layers, and how the hardware is used. A well-plated zinc alloy component with a proper nickel undercoat and a thick gold topcoat will outlast a poorly prepared piece with a minimal flash coating, even if they look identical on day one.
The most important variable buyers overlook is the undercoat. A copper or nickel undercoat between the base metal and the topcoat dramatically improves adhesion and longevity. Suppliers cutting costs will skip or thin this layer – a detail that’s invisible to the naked eye but shows up clearly after a few months of use.
Barrel Plating vs. Rack Plating
Barrel plating tumbles hardware in bulk through the plating solution – efficient for high volumes of simple parts like rings and rivets, but the constant piece-to-piece contact can round off edges and blur fine surface detail.
Rack plating mounts each piece individually, eliminating contact entirely. The result is more consistent thickness, better coverage on complex geometries, and no mechanical damage during processing. It costs more, but for hardware where surface precision is part of the design, it’s the right method.
When sourcing custom hardware with fine detail, always ask your supplier which method they use and why.
Best for: Fashion hardware across all price points, decorative finishes, wide color and effect range including gold, silver, gunmetal, antique brass, rose gold.
Watch out for: Flash plating with minimal undercoat, suppliers who can’t provide cross-section plating thickness data on request.