What is “Crazing”?

crazing
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What is “Crazing”?

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When you see an old tile installation, you may notice tiny hairline cracks in the glaze. This is known as crazing and it is inherent to our tiles – just as it was to the turn-of-the-century tiles that inspire our work. Crazing is not a defect – it’s a natural process that adds character and beauty to our tile. Unlike paints or stains, these crazing lines do not jeopardize the integrity of the tile. You don’t ever need to worry about the glaze peeling or flaking off – it’s fired on for life. Crazing is caused during the cooling process. As the body and glaze cool they both shrink – but if they shrink at different rates, surface tension is created. Ultimately, this tension creates the crazing lines we see. The extent and pattern of the crazing is unique to each piece of tile and is totally beyond our control. So while you may have a sample with one degree of crazing, the next run could look very different. What we can guarantee is that each run will be different from the next and all wil

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Crazing is tiny hairline cracks around the drain that become progressively worse over time. Crazing is a problem that happened with cultured marble several years ago. Today, with the advancement of technologies in equipment and raw materials, crazing has virtually been eliminated. Also, the testing done by product testing labs ensures that the product has maximum resistance to crazing. With the technology changes and product testing, crazing should not be a problem for tens of years.

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A fine hair-line cracking which sometimes appears on the glazed surface of a tile caused by tensile stress between the tile body and the glaze. May also be produced intentionally for decorative effect.

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