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Reasons For Stone Rust Yellow And Preventive Methods Source:  New Classic Series EU Standard Quartz Stone     Newstime:  2019-10-19 11:50:36     person browsing

As a high-grade building decoration material, stone is widely used in interior and exterior decoration design, curtain wall decoration and public facilities construction. The stones commonly found on the market are mainly divided into natural stone and artificial stone and marble.

Natural stone is divided into slate and granite according to its physical and chemical properties. Artificial stone is divided into terrazzo and synthetic stone according to the process. The terrazzo is forged from cement, concrete and other raw materials; the synthetic stone is made of natural stone gravel as raw material, and is pressed and polished with a binder. The latter two are made by hand, so the strength is not as high as natural stone. Stone is a high-grade product of architectural decoration materials. Natural stone is roughly divided into granite, slate, sandstone, quartzite, volcanic rock, etc., such as Quartz Stone For Dining Table which is common in daily life. With the continuous development and advancement of technology, the products of artificial stone are constantly changing, and the quality and beauty are not inferior to natural stone. With the development of architectural design, stone has already become one of the important raw materials for construction, decoration, roads and bridge construction.

Then we can usually see that articles made of stone, such as furniture, usually turn into rust yellow. What is the reason? Black Color Quartz Stone Manufacturer will come to tell you why.

Generally, the genesis of rust yellow can be discussed from three aspects. First, the original material (ie, the stage of stone formation) itself contains the substrate rust yellow which occurs in unstable iron minerals. Second, the improper treatment in the stone processing process; Third, the rust of the accessories after installation. The following is a description of each of the above three aspects.

First of all, the stone may have primary rust yellow. There are iron-containing minerals in the interior of marble, such as iron carbonate, iron sulfide, iron silicate minerals, etc., which have been detailed in the previous chapters. Generally, iron-bearing minerals are more stable with iron-silicate minerals, and iron sulfide is the least. Stable, therefore, unstable iron sulfide can be said to be the cause of the largest rust yellow pollution on the stone surface. In addition, although the biotite is more stable than iron sulfide, it may be oxidized and rusted to form limonite (Fe203, mH20) under the action of acid and water for a long time. The contaminated stone forms rust yellow, and even expands due to rust. When the layers are peeled off, rust yellow is formed in the stone, and even if the volume expands due to rust, the layers are peeled off, thereby forming a small pit on the surface of the stone.

Secondly, the rust yellow caused by improper stone processing procedures, mainly:

1. When the original stone is cut by steel wire sawing, the surface of the stone may not be cleaned due to residual steel sand, and after the action of water vapor, rust spots are formed. In general, after the stone is ground and polished, the rust spots usually do not occur again.

Second, the stone is pickled after being cut, and the residual acid substance causes the accelerated oxidation of the iron-containing mineral of the stone. Stone hanging accessories pollution

When the stone is installed by the wet reinforcement method or the dry method, the iron fittings are rusted and spread to the surface of the stone to form rust yellow. The reason for the rust yellow is that the stone itself contains unstable iron-containing minerals, or the foreign rust penetrates into the surface of the stone due to moisture to cause rust yellow.

Therefore, reducing the moisture content of the stone can avoid the occurrence of stone rust yellow, and the preventive measures are as follows:

Black Color Quartz Stone

Black Color Quartz Stone

First, the stone before the installation, the protection of the application, to prevent water intrusion into the slate, to avoid iron oxides and water, oxygen in the air oxidation reaction caused by rust yellow.

Second, when cleaning the stone, avoid using acid-containing detergent to clean, because the acidic substance is easy to dissolve the stone iron mineral, and then further react with water and air to cause rust yellow.

Third, when the stone is installed by the dry method, the stainless steel holding parts should be carefully selected to avoid the hanging pieces, and the rust will spread to the surface of the stone to form rust yellow. After the decoration of the stone saw wear, the reprotectant should be applied - times to prevent the rust yellow from spreading to the surface and forming pollution.

The above is about how to avoid rust yellow in stone, I hope to help everyone. In addition, if you have a need for stone, you can contact us, we as a stone company, can provide you with a variety of stone including Black Color Quartz Stone, welcome your purchase.

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