Expert Insights from Richard Giles, Global Technical Service & Training Manager

Top Technical Tips for Aerospace Coatings

When it comes to aerospace coatings, precision, performance, and process matter. Sherwin‑Williams Aerospace brings you Top Technical Tips for Aerospace Coatings, curated by Richard Giles, Global Technical Service & Training Manager, drawing on decades of hands‑on industry experience. These expert insights are designed to help operators, applicators, and maintenance teams make informed decisions that improve coating performance, extend aircraft life, and support long‑term airworthiness.

 Drop Coat: The Secret to Metallic Control 
A properly applied drop coat helps ensure even pigment distribution and consistent appearance, especially when working with metallic paints. By dialing in gun distance and overlap, painters can eliminate mottling and achieve a smooth, uniform finish.

Base Coat vs. Single Stage: Choosing the Right Technology 
Modern single‑stage coatings offer excellent performance for one‑ or two‑color designs, including painted stripes. For multi‑color layouts or special effects, base‑coat/clear‑coat systems

remain the best choice for depth, control, and visual impact.

 Why the Paint Kitchen Matters 
A well‑organized paint kitchen is the foundation of a quality finish. Accurate mixing, correct ratios, and strict adherence to data sheets ensure predictable application, consistent performance, and professional results every time.

Aerospace Coatings vs. Automotive: Know the Difference 
Not all coatings are created equal. Aerospace coatings are engineered for extreme durability, UV resistance, and performance at altitude—making the right product choice critical for aircraft safety, longevity, and compliance

Avoid Rework: Every Layer Matters 
Rework costs time and material—but it’s avoidable. Following product data sheets, mixing at the correct ratios, and maintaining clean work practices all contribute to first‑time‑right results from start to finish.

Controlled Cross Coat for Consistent Coverage 
Using a controlled cross‑coat technique promotes even application and minimizes streaking or dry spots. Alternating spray direction with consistent overlap helps create a balanced film build and a more uniform final appearance.

Prevent Solvent Pop with Proper Process Control 
Solvent pop can be avoided by maintaining correct wet film thickness, spraying within pot life, and ensuring proper air movement. Controlled application and ventilation allow solvents to escape evenly, protecting the integrity of the finish.

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