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What are the most common causes of discoloration or glaze deterioration in antique porcelain sculptures?

Author:Editor Time:2025-04-15 Browse:



Antique porcelain sculptures are prized for their delicate beauty, but over time, they often suffer from discoloration and glaze deterioration. Understanding the root causes can help collectors preserve these treasures.

1. Environmental Exposure

Prolonged exposure to sunlight, humidity, or temperature fluctuations can weaken the glaze, leading to fading or cracking. UV rays break down pigments, while moisture encourages mold growth or mineral deposits.

2. Chemical Reactions

Harsh cleaning agents or airborne pollutants react with the glaze, causing dullness or discoloration. Acidic substances, in particular, corrode the surface over time.

3. Improper Handling

Oils from human skin, frequent touching, or abrasive cleaning methods wear down the protective glaze, accelerating deterioration.

4. Age and Material Fatigue

Natural aging causes microscopic cracks (crazing), allowing dirt to seep in and discolor the porcelain. Low-fired ceramics are especially prone to glaze instability.

5. Previous Poor Repairs

Non-professional restorations using incompatible materials may darken or weaken the original glaze.

To mitigate damage, store porcelain in stable conditions, avoid harsh cleaners, and consult experts for restoration. Proper care ensures these historical artworks retain their brilliance for generations.

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