Aircraft Finishes Flashcards

1
Q

What are the two common types of paint used on aircraft?

A

Zinc-chromate, wash Primers, enamels, laquers and polyurethane.

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2
Q

What is used to thin zinc chromate primer?

A

Toluene

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3
Q

What is a cause of spray dust?

A

Incorrect spray gun setting, air pressure, paint flow, spray pattern,
spray gun held too far, improper thinner mixture.

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4
Q

What are two types of dope used for aircraft finishes?

A

Nitrate and Butyrate.

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5
Q

What are three methods of applying paint?

A

Dipping, Brushing and Spraying.

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6
Q

What is the purpose of zinc chromate primer?

A

It is a corrosion resistant covering and is a base coat for protective topcoats.

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7
Q

Describe the appearance of blushing in a paint finish?

A

Blushing has a dull milky haze appearance

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8
Q

What will cause blushing in a paint finish?

A

Moisture in the paint/spay gun or Temperature too high.

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9
Q

What may cause spray paint sags and runs?

A

Too much paint, reducer and incorrect spray gun setting.

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10
Q

What causes Orange peel?

A

Spray pressure too high, thinner that dries too fast, cold temperatures.

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11
Q

What paint system is compatible with epoxy topcoats?

A

Any paint in good condition.

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12
Q

What areas must be protected from damage when using paint remover/stripper?

A

Windshields, Windows, plastic, composites and fabrics.

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13
Q

How can a mechanic determine if the control surfaces need to be checked for balance after painting?

A

Refer to the manufacturer service manual.

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14
Q

What could be the result of applying a coat of dope when the temperature of the dope room is too high?

A

Pinholes or blisters in the dope film.

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15
Q

Many solvents and thinners used in modern finishing systems are toxic, what heath safety precautions
should the mechanic observe?

A

Respirators or masks must be worn.

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16
Q

Why is butyrate dope safer to use than nitrate dope?

A

It is much less flammable.

17
Q

What regulation governs the application of the registration numbers to aircraft registered in the USA?

A

Far Part 45

18
Q

Other than appearance, what is another reason for touching up painted surfaces?

A

Reduction or elimination of general corrosion problems.

19
Q

What would be the effect if dope was used over paint or enamel?

A

Dope tends to dissolve these materials.

20
Q

What is the effect on paint finishes if too much drier is added to the paint?

A

The paint will crack and peel.