Composite coatings, developed through physical additives or chemical reactions, significantly improve properties such as corrosion resistance, flexibility, and durability in protective applications. These coatings are especially effective when used in multi-layer systems, where each layer contributes distinct protective benefits. Innovations in fusion-bonded epoxy coatings from Sherwin-Williams illustrate how these technologies work together to shield pipelines from environmental stressors, UV degradation, and cathodic disbondment, ensuring long-term performance in demanding conditions.