What kind of paint do they use on airplanes?

Generally, there are two different kinds of paint used to paint commercial air crafts: enamel and epoxy. Epoxy is heat and chemical resistant and provides good electrical insulation. It also holds well to surfaces without becoming brittle, crack or chip. It also does not fade or oxidize quickly.



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A typical Boeing 747 paint job uses around 120 gallons (545.53 liters), while a 767 uses approximately 90 gallons (409.15 liters). All told, painting a commercial airliner can cost anywhere from $50,000 to $200,000.

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The aircraft is painted in three layers of specialised technical coatings: a primer bonding coat, an anti-corrosion basecoat and the livery topcoat. The production team use a high-volume, low-pressure spray system to apply each coat in ultra-fine and even layers.

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Green zinc chromate or zinc phosphate primer is applied to prevent corrosion on the aluminum surface. Since the anti-corrosion chemical and primer are used on all newly produced aircraft, all new aircraft look green.

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The spraying of airplanes as they land is a tradition known as the “water salute.” As explained by Wikipedia, it's performed for ceremonial purposes, such as the retirement of an airplane. When an airplane makes its final flight, it's honored with the water salute once it lands on the tarmac.

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