Definition
A liquid solution, usually containing dissolved salts or acids, through which an electric current is passed to deposit, remove, or chemically alter material on a metal part submerged in it. Used in aircraft maintenance for processes such as electroplating, anodizing, and electrolytic cleaning.
Plain English
A tank of special liquid that conducts electricity. When a metal part is placed in it and current is run through, the liquid either coats the part with a thin layer of metal, builds a protective surface on it, or strips contamination off it.
Context Anchor
Seen in aircraft maintenance, especially in corrosion control, metal finishing, plating, and surface-treatment procedures.
Derivation
Electrolytic comes from Greek elektron (amber, the original source of static electricity) and lysis (loosening or breaking apart). Bath simply means a liquid in which something is immersed. Together: a liquid that uses electricity to break apart or rearrange chemical bonds on the part submerged in it.
Why Pilots Care
Many aircraft components, fasteners, and structural parts rely on electrolytic processes for corrosion protection and dimensional restoration. Knowing what an electrolytic bath does helps a technician understand finish specifications, repair limits, and why certain parts must be reprocessed after machining or repair.
Intuition Check
Do not think of bath as ordinary washing with soap and water. Here, bath means a controlled chemical liquid used to treat a part, and electrolytic means electricity is part of the treatment.
Example Sentence 1
After the landing gear component was machined to repair wear, it was placed in an electrolytic bath to restore the chrome plating to specification.
Example Sentence 2
Proper temperature control in the electrolytic bath ensures uniform plating on the aircraft fittings.