These methods keep you away from stone rust

There are many reasons for stone rust. When the original stone is cut with a steel sand saw, the stone surface may rust due to the residual steel sand not being cleaned up, and water vapor can also cause rust. Generally speaking, after the stone is polished, rust usually does not occur again. After the stone is cut and pickled, the residual acidic substances accelerate the oxidation of the iron minerals in the stone.

When the stone is installed by wet reinforcement or dry method, its iron accessories rust and spread to the surface of the stone to form rust yellow. Factors causing rust yellow include unstable iron minerals in the stone itself, or external rust penetrating into the stone surface due to moisture and causing rust yellow.

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

1. Before installing the stone, take protective measures to prevent moisture from invading the stone slab and prevent iron minerals from oxidizing with moisture and oxygen in the air to cause rust yellow.

2. When cleaning the stone, avoid using acidic cleaners, because acidic substances can easily dissolve the iron minerals in the stone, which will further react with water and air, causing rust and yellowing.

3. When using the dry method to install the stone, stainless steel brackets should be carefully selected to avoid hanging parts, which will rust and spread to the surface of the stone and turn into rust and yellowing. After decoration, the stone saw wear area should be coated with a protective agent again to prevent rust and yellowing from spreading to the surface to form pollution.

There are many iron-containing minerals in marble, such as iron carbonate, iron sulfide, iron silicate minerals, etc. Iron-containing minerals are usually more stable in iron silicate minerals, while iron sulfide is the most unstable. Therefore, unstable iron sulfide can be said to be the biggest cause of rust and yellowing pollution on the surface of stone.