What is Ceramic Glaze? Tips for Choosing Ceramic Glaze

1、 Ceramic glaze

The construction and sanitary ceramics industry attaches great importance to the use of advanced glaze technology, and a large number of highly specialized ceramic glaze, ceramic frit, and color companies have emerged in China. The glaze used in building and sanitary ceramic products is becoming increasingly diverse. Currently, most ceramic enterprises use glaze products, which can be roughly classified into the following categories and uses: lead glaze and lead-free glaze; Raw glaze and frit glaze; Glaze for primary or secondary firing; Glazes for ceramic tiles, tableware, sanitary ceramics, and electrical ceramics; Dipping, spraying, and pouring according to the glaze application method; High temperature glaze and low temperature glaze; High expansion glaze and low expansion glaze; Burn into atmosphere oxidation flame, neutral flame, and reduction flame; Color glaze and colorless glaze; Transparent glaze and opaque glaze; Glossy glaze, matte glaze, semi matte glaze or patterned glaze, etc.

2、 Tips for selecting ceramic glaze

1. Due to the absence of frits in the composition of ceramic raw glaze, they are used when the firing temperature is greater than 1150 ℃. Usually used for producing hard porcelain, vitrified sanitary porcelain, stoneware, electric porcelain, and various low expansion body glazes. Raw glaze contains mineral solvents such as feldspar or nepheline syenite, with clay, quartz, calcium carbonate, dolomite, zinc oxide, and zirconium silicate as commonly used raw materials. Low expansion raw glaze also uses lithium feldspar as a flux.

2. Raw glaze will not have a glass phase on its appearance. During the production process, it will exhaust the gas from the raw material, which will become the glaze we want. Therefore, raw glaze takes longer than frit glaze. When the firing temperature is below 1150 ℃, frit glaze should be used. In addition, when using the low-temperature fast firing process, the content of frits in the glaze needs to be correspondingly increased.

3. The lead glaze part uses lead oxide as a flux, often used in conjunction with boron oxide, to strongly reduce the melting temperature of the glaze. The advantages of lead and lead boron glaze are strong glossiness, good elasticity, suitability for various bodies, and ability to enhance the color rendering of the glaze. However, considering the harm of lead toxicity, it should be used as little as possible at present.

There are many types of ceramic tiles used in our house decoration, and ceramics are one of them. So, what is ceramic glaze and what are its purchasing techniques? I want to introduce them to everyone through the above editor. If you want to learn more about decoration information, please continue to follow the Decoration Home Online Bar.