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Aircraft Paint Guide

Aircraft paint refers to various specialised coating systems designed to protect an aircraft's surface from the harsh conditions they encounter during flight. Protective properties can include anti corrosion, UV protection and impact resistance.  This specialised paint also improves aerodynamics and creates the appearance that aligns with branding or aesthetic requirements.

The painting process, materials used, and application methods are critical, as aircraft operate in harsh conditions and require coatings that can endure extreme temperatures, pressure changes, UV exposure, and potential corrosion from exposure to water, salt, and chemicals.

Aircraft paint systems are usually multi-component, requiring one or more of the following: activators, thinners, and curing solutions, along with the base components listed below.

Aircraft Paint Primers

The first coat applied to the aircraft surface, primers are typically anti-corrosive and help the topcoat adhere better to the metal or composite materials.

Aircraft Paint Topcoat

A High Solids Topcoat is the traditional method for painting aircraft. This final layer seals and protects the paint job. It is the outermost protective layer that enhances durability, provides UV resistance, and adds a glossy or matt finish. This layer is key for aesthetics and protection against environmental damage. A topcoat can consist of several finishes including matt, gloss and semi gloss and can be applied to interiors or exteriors.

Base Coat/Clear Coat

Newer aircraft paint schemes are incorporating base coat/clear coat systems. This system combines two separate paints: the primary colour of the aircraft (base coat), a solid colour or a metallic finish, followed by a high gloss clear coat. Multiple colour coats may be applied to create complex paint schemes with intricate designs. Without a clear coat, traditional topcoats take 35 hours to dry in comparison to 20 hours using this newer technology. Other benefits include it being lighter, faster drying, faster to apply due to fewer layers. Lower VOC emissions & retaining a "factory" new look for longer.

Before applying primer in aircraft painting, surface preparation is crucial to ensure proper adhesion and durability of the paint. There are several preparatory steps, critical for achieving a smooth, durable, and long-lasting paint finish on an aircraft. Silmid sell a range of Socomore Socogel products which are a popular choice for this purpose. If you would like more advice on which paint systems to use, please contact our experts.