Definition
An electroplating process in which a very thin layer of metal is deposited onto a part by passing it briefly through the plating bath at high current density. The resulting coating is too thin to provide significant corrosion protection or wear resistance, and is used primarily as a base for subsequent plating, to improve appearance, or to prepare the surface for soldering.
Plain English
A quick coating of metal applied by electricity that leaves only a very thin layer on the part, usually to prepare the surface for further work rather than to protect it.
Context Anchor
Seen in aircraft maintenance, repair, corrosion-control work, and parts finishing instructions.
Derivation
Flash' here means brief or momentary, as in a flash of light. The name reflects how quickly the part passes through the plating bath, leaving only a thin film.
Why Pilots Care
Flash plating can protect aircraft parts from rust and other surface damage. If it is removed by sanding, wear, or improper cleaning, the part may lose some of its intended protection.
Intuition Check
Flash plating does not mean a shiny light or an electrical flash. Here, flash means a very thin, quickly applied metal coating.
Example Sentence 1
Before the connector pins were gold-plated, they received a flash plating of nickel to help the gold adhere.
Example Sentence 2
Flash plating was applied to the fastener to prevent corrosion during storage.