Not all rusty surfaces can be cleaned of corrosion with a steel brush or sandpaper. Many of them have complex terrain or are located in a cavity. For such surfaces, a chemical cleaning method is better.
What you will need:
hydrogen peroxide;
lemon acid;
plastic container.
The process of preparing a solution and cleaning metal from corrosion
Hydrogen peroxide is poured into the container in such a volume as to completely immerse the rusty part. After this, citric acid is added. The more it is, the faster the rust will dissolve. In the example, 100 g is poured into 1.2 liters of peroxide. acids.
It is necessary to place the acid and peroxide until the grains dissolve, and immediately immerse the parts for cleaning.
As a result of the reaction, drilling and heating of the solution will occur, almost to boiling.
In this case, the rust will disappear from the surface in a couple of minutes, the living metal underneath will remain intact. When cleaning using this method, fumes are released that are best not inhaled, so you need to work outside or under a hood.
In such a bath, you can restore threads on rusted bolts and nuts in 2-3 minutes. The solution weakens as it is used and gradually loses its cleaning ability.
