Bronze sculptures are timeless works of art, but they are susceptible to several common defects that can compromise their beauty and longevity. One frequent issue is surface cracking, often caused by improper cooling during casting or environmental stress. To prevent this, artists should ensure even cooling and use high-quality bronze alloys.

Another common problem is patina deterioration, where the sculpture's surface develops uneven discoloration or green corrosion. This can be avoided by applying protective wax coatings and keeping the artwork in stable humidity conditions.

Casting flaws like porosity or air bubbles may appear if the mold isn't properly prepared. Skilled foundries use degassing techniques and precise temperature control to eliminate these imperfections.

Bronze disease, a destructive form of corrosion, can be prevented through regular cleaning with specialized solutions and avoiding exposure to chlorides. Lastly, structural weaknesses often stem from poor armature design - reinforcing the internal framework during creation helps maintain the sculpture's integrity.

By understanding these defects and implementing preventive measures, artists and collectors can preserve bronze sculptures for generations while maintaining their artistic value. Regular maintenance and proper display conditions are equally crucial for long-term preservation.