Porcelain sculptures, while admired for their delicate beauty, often face structural weaknesses due to their fragile nature. The most common issues include cracks, warping, and breakage, which typically arise during the creation or display process.

1. Cracks: These often occur due to uneven drying or rapid temperature changes during kiln firing. To mitigate this, artists use controlled drying techniques and gradual heating/cooling cycles in the kiln.

2. Warping: Caused by uneven clay thickness or improper support during firing. Solutions include using armatures or kiln stilts to ensure even heat distribution.

3. Breakage: Thin or protruding parts are especially vulnerable. Reinforcing these areas with additional clay or designing sculptures with balanced weight distribution can prevent damage.

4. Glaze Defects: Poor glaze application may weaken the structure. Layering glazes evenly and testing firing temperatures can enhance durability.

For restoration, epoxy resins or specialized ceramic adhesives are used, followed by careful color matching. Preventive measures, like stable display environments and gentle handling, further preserve these artworks. By addressing these weaknesses, artists and collectors can ensure the longevity of porcelain sculptures.