Experts say: "Ultra-white" tiles may have an excessively high water absorption rate, which could lead to poor adhesion. When it comes to wall tiles, lower water absorption is generally better. However, this isn’t always the case. While a low water absorption rate can prevent moisture from seeping into the tile and causing cracks or peeling, wall tiles still need some level of water absorption to ensure proper bonding with cement mortar during installation. If you're using only cement mortar, it's recommended to choose wall tiles with a moderate water absorption rate—around 10% is ideal. Make sure to soak the tiles sufficiently before laying them. If you opt for tiles with very low water absorption, consider using a safe, eco-friendly tile adhesive instead. The finer the tile particles, the stronger the tile. This is because the strength of a tile depends on its density, which is influenced by how fine the particles are. When choosing ceramic tiles, especially for high-traffic areas like living rooms, check the back of the tile. The finer the particles, the denser and more durable the tile tends to be. A dense tile is less likely to crack or break under pressure. Glazed tiles can sometimes develop glaze cracks. One common issue is “glaze bursting,†which occurs when the glaze layer is unevenly applied or develops micro-cracks during the firing process. This can cause the surface to crack over time. To avoid such problems, it’s best to purchase tiles from trusted brands that maintain strict quality control during production. When buying ultra-white tiles, be cautious about excessive zirconium silicate. Some tiles may fail radiation tests due to the addition of too much zirconium silicate during the polishing process. Zirconium silicate is often used to enhance the whiteness of the tile, but if added in excess, it can increase the radiation levels. According to experts, ceramic products do contain some level of natural radiation, but as long as they meet safety standards—such as Class A rating—the risk is negligible. In countries like Germany, ceramic products are subject to strict environmental regulations, ensuring their safety for use in homes. It's important to remember that radioactive materials in ceramics naturally decay over time. After purification and processing, any residual radioactivity becomes insignificant. As long as you choose certified, high-quality tiles, you don't need to worry about radiation, even if you install them in large areas. Stainless Steel Door,Steel Door And Frame,American Steel Door,Commercial Steel Door Lemon Building Material Co., Ltd. , https://www.lemonbuilding.com