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Aerospace coatings include primers, top coats and specialty coatings to paint the interior and exterior surfaces as well as various parts of airplanes. Need for high mechanical strength neccessitates the use of low density materials, made use of aluminium alloys, plastic composites and titanium widespread in aerospace coatings. During flights, airplanes are subjected to high grade UV exposure without protected by clouds. Moreover, sudden temperature change is another important parameter. Therefore, in aerospace coatings, primers with good surface adhesion as well as topcoats with high UV durability and flexibility are employed. Aluminium and alloys are preferred because of their low density and high mechanical strength in addition to corrosion resistant nature and their ease of production. Together with aluminium, composite materials produced from different types of engineering polymers and reinforcing materials, magnesium, titanium, and steel are used.