Glazed tiles for decoration materials, people generally pay more attention to its decorative properties, which is concerned with the quality of its appearance, such as surface

Whether the defects affect the decorative effect, whether the dimensions meet the requirements, the surface is smooth, with or without warping, whether the vertical edges

And so on. In fact, after laying in order to ensure to maintain decorative glazed surface durability, not to use environment "in the destruction of various factors

, Glazed tiles must have the necessary physical and chemical properties.

(1) Water absorption: glazed ceramic tiles water absorption not more than 21%.

(2) resistance to quench the heat of emergency: rapid thermal quench resistance is the glazed ceramic tiles to withstand the temperature of the rapidly changing nature without cracks.

(3) Bending strength: bending strength of glazed ceramic tiles on average not less than 16mpa, when the brick thickness greater than or equal 7.5mm, the bending

Average bending strength not less than 13mpa.

(4) anti-cracking: The anti-cracking test, glazed no crack.

(5) glaze resistance to chemical corrosion: glazed resistance to chemical corrosion, required by the agreed level of supply and demand.

Glazed chemical resistance is glazed in acid solution under the influence of anti-corrosion. Available pencil test and light reaction of the parties

Method to identify glazed under the action of the acid solution, corrosion, and to determine the level of corrosion resistance. Corrosion-resistant glazed rating

Divided into aa level, a grade, b grade, c-and d-level five levels, including aa highest level of corrosion resistance, followed by followed by a class, b class

, C class, d the worst corrosion resistance level.

Several physical and chemical properties of the above be measured by special tests, the general user can not own determination. However, manufacturers in

Products are factory performance to conduct the sampling, and meet the requirements to the factory, so the formal indicating the name and trademark

Qualified glazed tiles, its physical and chemical properties are eligible.