Aircraft Painting And Finishing Flashcards
What are the two types of dope used for fabric finishes
Nitrate and butyrate
What finishing defect is the result of a paint room temperature that is too warm
Pinholes or blisters
What causes dope to blush and how can it be prevented
High humidity, moisture in the spray system, or application over a damp surface can be eliminated by heating the room to decrease humidity or by using a blush retarding thinner to increase the drying time
What factor cause spray paint sags and runs
Poor surface preparation or paint sprayed on too thickly
What components or parts of the airframe must be protected from damage when using paint stripper/ remover
Windshields and windows, plastics, composites, synthetic rubber, and fabrics
What is the function of zinc-chromate primer
Prevent 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 health and safety precaution must be observed when used the toxic solvents and thinners that are part of modern finishing systems
Respirators and mask must be worn when spraying finishes
What causes orange peel
Incorrect spray setting, incorrect air pressure, incorrect paint viscosity, and holding the gun too far from work
What regulation governs the application of the registration number to aircraft registered in USA
FAR Part 45
Other than appearance what is another reason for touching up painted surfaces
Reduce or eliminate corrosion problems
What reference should be used to determine if a control surface must be checked or rebalanced after
The manufactures service manual
What are the three most commonly used method of applying paint
Dipping, brushing, and spraying
What is the effect on paint finishes if too much drier is added to the paint
The paint film will be brittle and tend to crack and peel
What paint system may be used with epoxy topcoats
Any paint system in good condition
Where are the registration marks required to be placed on a fixed wing aircraft
On a vertical tail surface or on the side of the fuselage
What is the generally required dimensions of the registration numbers on the side of a fixed wing aircraft
12 inches and 2/3rds wide as they are high. They must be solid letters and spacing no less than a quarter inch apart
Does a rejuvenator restore strength to the fabric
No,it only restores resilience to the finish
What causes pinholes in a finish
Excessive atomizing air on the spray gun
What safety precaution must be observed when sweeping a paint room that has dried dope or lacquer overspray on the floor
The floor must be wet down with water before it is swept. Static electricity from dry sweeping can cause a fire
Why is butyrate dope safer to use than nitrate dope
It is much less flammable
What is the purpose in using fungalsidal dope when finishing aircraft fabric
To keep fabric from rooting
What are the three types of dope used for aircraft finishes
Clear dope , semi- pignitive dope, and pigmentive dope
What would happen if dope was used over paint or enamel
It would have the tendency to lift and remove the paint or enamel
