Flashcards on Aircraft Finishing and Structural Materials
Aircraft Finishing & Structural Materials: A Student Guide
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Aircraft painting and composite materials
12 cards
Card 1
Question: When mixing epoxy paint, should the converter be added to the resin or the resin to the converter?
Answer: The converter should always be added to the resin; never add the resin to the converter.
Card 2
Question: What is the general reason for runs and sags when spraying a finish onto a flat surface?
Answer: Too much paint is being applied; the film is too thick.
Card 3
Question: How can blushing on a freshly sprayed doped surface be remedied?
Answer: Spray a very light mist coat of 1 part retarder to 2 parts thinner over the blushed area, allow to dry, then spray another coat. If that fails, sand o
Card 4
Question: Name three materials used to reinforce the matrix material in aircraft composite structures.
Answer: Fiberglass, Kevlar, and graphite.
Card 5
Question: What are two popular types of core materials used in laminated composite structures?
Answer: Foam and honeycomb.
Card 6
Question: Which nondestructive inspection method is suitable for detecting internal damage in honeycomb material?
Answer: Ultrasonic inspection.
Card 7
Question: What safety precaution must be observed when sweeping a paint room floor that has dried dope or lacquer overspray?
Answer: Wet the floor down with water before sweeping because static electricity from dry sweeping can cause a fire.
Card 8
Question: What will happen if dope is sprayed over an enameled surface?
Answer: The thinner in the dope will penetrate and cause the enamel surface to swell.
Card 9
Question: Name three types of primer that may be used when painting an aircraft.
Answer: Zinc chromate primer, wash primer, and epoxy primer.
Card 10
Question: How should the finish be removed from a fiberglass aircraft component being repaired?
Answer: The finish must be sanded off; paint remover can soften the resin of the component.