Are aluminum French casement windows resistant to corrosion in coastal Middle East cities?

Coastal environments in the Middle East—such as Muscat, Alexandria and Manama—expose windows to salt-laden air that accelerates corrosion. Aluminum itself forms a passive oxide layer that resists rust, but protective finishes and hardware choice are critical for long-term durability. Anodizing increases surface resistance while PVDF and high-quality powder coatings provide robust UV and salt-spray protection. Marine-grade stainless-steel hinges, fixings and fasteners reduce galvanic corrosion risks when combined with insulating washers and careful material selection. Design details—such as avoiding trapped crevices where salt can accumulate and ensuring adequate drainage—further mitigate corrosion. For the most demanding coastal projects, specifying tested corrosion resistance levels and warranty-backed finishes provides assurance. Regular rinsing of exterior frames with fresh water after heavy salt exposure is a straightforward maintenance measure to prolong finish life. With these measures, aluminum French casement windows deliver reliable corrosion resistance in coastal Middle East cities.