Aircraft Finishes Flashcards
What are the two common types of paint use on aircraft?
Zinc chromate, wash primers, enamels, lacquers, and polyurethane
What is used to thin zinc chromate primer?
Toluene
What is the cause of spray dust?
Incorrect spray-gun setting, air pressure, paint flow, spray pattern, spray gun too far, and improper setting mixture
What are the two types of dope used for aircraft finishes?
Nitrate and Butyrate
What are three methods of applying paint?
Dipping, brushing and spraying
What is the purpose of zinc chromate primer?
It is a corrosion resistant covering and is a basecoat for protective topcoats
Describe the appearance of blushing in a paint finish
Blushing has a dull milky haze appearance
What will cause blushing in a paint finish?
Moisture in the paint or spraygun, or the temperature is too high
What may cause spray paint sags and runs?
Too much paint reducer an incorrect spraygun settings
What causes orange peel?
Spray pressure too high, thinner drys too fast and cold temperatures.
What paint system is compatible with epoxy topcoat?
any paint in good condition
How can a mechanic determine if the control surfaces need to be checked for balance after painting?
Refer to the manufacturer’s service manual
What areas must be protected from damage when using paint remover?
Windshields, windows, plastic, composites in fabrics
What could be the result of applying a coat of dope when the temperature of dope in the room is too high?
Pinholes or blisters in the dope film
Many solvents and thinners used in modern finishing systems, are toxic. What health safety precaution should a mechanic observe?
Respirators or mask must be worn
