The main component of stone rust is a mixture of iron hydroxide and ferrous hydroxide. Therefore, industrial chlorination is selected as the main pickling material for chemical rust removal, and then an appropriate amount of additives is used to form a chemical reaction between the rust removing agent and the rust to form a soluble solution. Iron chloride in water, etc., to achieve the purpose of derusting. Based on a large number of practical experiences, Schinuo of Germany has summarized some methods of descaling, so that everyone can easily remove rust without damaging the stone. Stone rust should pay attention to the following points when handling:
Choose a good quality product
When choosing a stone rust remover, be sure to choose a good quality product. Because good stone rust remover contains an appropriate amount of additives to maintain the stability of iron ions in the redox reaction. The rust spots treated with this stone treatment agent can remain for a long time without recurrence even without the stone protection treatment. Germany Sino's stone rust remover SINO-309 imported alkaline rust remover, it does not burn the stone, it has effect in 2 minutes, it is a high-efficiency marble rust remover and granite rust remover.
Wash with plenty of water
After using the stone rust remover once, wash it with plenty of water, leaving no rust remover. Be sure to use high-quality stone curing agent for protection after drying. The purpose of this operation is to completely remove the residue after the oxidation reaction and prevent the oxidation reaction from occurring again. For example, the German SINO-2500 can be waterproof, anti-fouling and oil-proof at the same time, and comprehensively protect the stone.
Avoid using oxalic acid
Try to avoid direct cleaning of stone rust with oxalic acid, because oxalic acid simply redoxes rust spots, redox iron ions are easily reducible again, regenerating rust, and further expanding rust spots with the flow of oxalic acid aqueous solution Area.
Differentiating different stone materials with oxalic acid
Due to the different composition of the marble and granite, the properties are different, so when using the treatment agent, it is necessary to distinguish the marble rust remover and the granite rust remover. Granite rust remover should never be used for the treatment of marble rust.
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