Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task G. Cleaning and Corrosion Control

AM.I.G.K13

Knowledge

Conversion coatings.

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Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - General p. 8-1
Chapter 8: Cleaning & Corrosion Control › Corrosion
into the base metal, creating a corrosion-resistant alloy, or the addition of a surface coating of a chemical conversion coating, metal, or paint. While in use, additional moisture barriers, such as viscous lubricants and protectants, may be added…
Aviation Maintenance Technician Handbook - Airframe p. 8-9
Chapter 8: Aircraft Painting & Finishing › Preparation › Surfaces
completely dry from the previous process, the next step is to apply Alodine® or another type of an aluminum conversion coating. This coating is also applied like a wash, allowing the coating to contact the surface and keeping ... thoroughly rinsed with clean water to remove all chemical salts from the surface. Depending on the brand, the conversion coating may color the aluminum a light gold or green, but some brands are colorless. When the surface is thoroughly…
Aviation Maintenance Technician Handbook - General p. 8-12
Chapter 8: Cleaning & Corrosion Control › Corrosion Prone Areas › Battery Compartments and Battery Vent Openings
diligent maintenance of the internal coatings applied to the float’s interior during manufacture. In addition to chemical conversion coatings applied to the surface of the sheet metal and other structural components and to sealants installed in lap joints during…