Bronze patinas are prized for their rich, aged appearance, but surface unevenness can mar their beauty. The most common causes include inconsistent chemical application, improper surface preparation, environmental factors like humidity, and uneven heating during the patination process.

To correct these issues, start by sanding or polishing the uneven areas to create a uniform base. Reapply the patina solution evenly, ensuring controlled environmental conditions. For stubborn spots, localized treatments with diluted acids or heat can help blend inconsistencies. Always seal the patina with a protective wax or lacquer to prevent future irregularities.

Preventive measures, such as thorough cleaning before patination and testing small areas first, can minimize unevenness. With careful technique, you can achieve a smooth, professional-grade bronze patina every time.