Why my ceramic have crack?
Many people will wonder why there are cracks on the unglazed side of the ceramic basin or ceramic toilet I just bought? I am worried that it will leak and affect the future use. And send pictures to the supplier, but the supplier says it's normal, why?
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Many people will wonder why there are cracks on the unglazed side of the ceramic basin or ceramic toilet I just bought? I am worried that it will leak and affect the future use. And send pictures to the supplier, but the supplier says it's normal, why?
What exactly is this matter about?
In fact, it is also mentioned in the "Ceramic Quality Inspection Standards" that it is normal for small cracks line to appear on the non-glazed surface of ceramics. This phenomenon is a "fire crack" phenomenon, which occurs in ceramics fired at high temperature,during the production process, the ceramic surface is heated unevenly, and the ceramic surface is prone to cracks during the rapid cooling process after leaving the kiln. The phenomenon of "fire cracking" proves that the ceramics you purchased are high-temperature ceramics, and the quality is relatively good. Fire cracking will not cause ceramic leakage and affect the appearance and practicality.
Generally speaking, ceramic manufacturers will use plastic steel soil to repair during inspection just for looking good to see the cracks , but it will not cause water leakage without repairing.
Therefore, when we check the quality of the product after receiving the goods, we must distinguish between fire cracks and real cracks.
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