Analysis of the Causes of Glaze Cracks in Ceramic Toilets

Analysis of the Causes of Glaze Cracks in Ceramic Toilets

January 15,2026

The toilet is one of the indispensable sanitary fixtures in modern life.

 

As living standards continue to rise, more and more people are paying attention to the quality and appearance of toilets. Cracking in the glaze of ceramic toilets is one sign of poor quality. So what causes it?

 

1.Poor Materials

The glaze layer on ceramic toilets acts as a protective barrier shielding the main body from damage. Due to frequent use, it must withstand the effects of water, air, temperature, and other factors, enduring the test of time and environment. If inferior materials are used, bubbles, chips, and cracks may appear in the glaze layer.

 

2.The Production Process Is Not Rigorous

The production of ceramic toilets involves multiple firings, each requiring strict control and testing. If production is not meticulous or certain steps are overlooked, it can lead to poor glaze quality and issues like cracking.

 

3.Man-made Damage

Toilet glaze cracking can also result from improper human handling. For example, using excessive cleaning agents or scrubbing with hard objects can scratch the glaze. Over time, this leads to cracks and other problems.

 

4.Environmental Changes

Toilets endure water impact and temperature fluctuations during use, which can affect the glaze. For instance, prolonged exposure to sunlight or high temperatures may cause the glaze to crack due to thermal expansion.

 

In summary, while multiple factors contribute to ceramic toilet glaze cracking, they all relate to quality issues. To prevent this problem, choose reputable brands and high-quality products when purchasing a toilet.

 

All OVS toilet products are fired in long tunnel kilns at 1280°C. This high-temperature process ensures a denser ceramic structure, making the toilet resistant to dirt buildup and exceptionally durable. Furthermore, rigorous testing effectively eliminates cracked toilets, guaranteeing superior product quality for consumer peace of mind. For optimal performance and comfort, proper maintenance is essential during use. Avoid excessive cleaning agents and exposure to direct sunlight or high temperatures to maximize the toilet's lifespan and ensure continued comfort.

 

If your toilet glaze has developed cracks, don't panic. Here's a detailed guide《Guidelines for Repairing Toilet Glaze》to repairing toilet glaze, helping you effectively resolve the issue.