Jeppesen Oral- Chapter 6 ( Aircraft Painting & Finishing) Flashcards
Why is butyrate dope safer to use than nitrate dope?
Much less flambable
What are two types of dope used for fabric finishes”?
Cellulose Nitrate and cellulose Acetate butyrate
What is the appearance of a blushing paint finish?
Chalky or cloudy
What finishing defect is the result of a paint room temperature that is too warm?
Pinholes or blisters
What causes dope to blush?
High humidity, application over a damp surface
What factors cause spray paint sags and runs?
Inadequate surface preparation or paint sprayed on too thinly
What components or parts of the air-frame must be protected from damage when using paint stripper?
Windshields and windows, plastics, composites, synthetic rubber
What is the function of zinc-chromate or wash primers?
Inhibit corrosion and provide a good bond between the metal and the topcoats
Name several common types of paint used on aircraft
Zinc chromate and wash primers, synthetic enamels, acrylic lacquer and polyurethane
What is the proper thinner to use with zinc-chromate primer?
Toluene
What health and safety precautions must be observed when using toxic solvents and thinners that are part of modern finishing systems?
Respirators and or masks must be worn
If spray painting dust causes a surface to appear dry and rough, what are the most likely causes?
Too much air pressure or the spray gun is too far from the surface being painted
What causes, orange peel?
Spray pressure too high, use of a thinner that dries too fast, cold temperatures or a damp draft over the surface
What regulation governs the application of the registration numbers to aircraft registered in the US?
FAR Part 45
Other than appearance, what is another reason for touching up painted surface
Reduction or elimination of general corrosion problems
