Speaking of yellow rust stone, everyone is generally not unfamiliar. And when it comes to the origin of yellow rust stone, I believe the first area that comes to mind is Shandong. Shandong rust stone and Shandong yellow rust stone. Then some people who are relatively interested in yellow rust stone may wonder what points need to be paid attention to in daily maintenance and cleaning after the yellow rust stone is paved?
The paved yellow rust stone may be attacked by wind, rain, and wind on the roadside every day, and may develop diseases. Rust spots on Shandong yellow rust stone are a very common disease. Here are some tips for cleaning rust spots. Try to avoid directly cleaning stone rust spots with oxalic acid, because oxalic acid only simply oxidizes and reduces rust spots. The oxidized and reduced iron ions are still unstable and are easily re-generated into rust through oxidation reaction with water and oxygen in the air. And it will further expand the area of rust spots along with the flow of oxalic acid aqueous solution.
In addition, the compositions of marble and granite are different, so their properties are also different. Marble is mainly composed of calcium carbonate and is alkaline. Granite is mainly composed of silica and is acidic. Therefore, when using rust removers, we must distinguish between marble rust removers and granite rust removers. The granite rust remover for Wulianhua fireproof board must not be used for treating marble rust spots. When choosing a rust remover, we must choose a product of good quality. Because a good rust remover not only contains acid but also adds an appropriate amount of additives to maintain the stability of iron ions in the oxidation-reduction reaction. Even without protective treatment, the rust spots treated with rust remover can be preserved for a long time without recurrence. On the contrary, some rust removers are just simple mixtures of some acids and cannot maintain the stability of iron ions in the oxidation-reduction reaction, and the recurrence rate is high.
To treat surface rust spots, only need to brush rust remover on the surface. Sometimes, surface grinding and polishing can also be used for treatment. The treatment of deep rust spots is relatively complex and requires a certain dosage and reaction time. Sometimes it needs to be used repeatedly to achieve the expected effect. After the rust stone is treated with rust remover, it is washed again with clean water. After drying, it must be protected with a good quality stone curing agent. The purpose is to completely remove the residues after the oxidation reaction of yellow rust stone and prevent the oxidation reaction from happening again.
