Rust - go away! Every owner wants to shout something like that when faced with corrosion on a tool or some important details. Rust can be removed in many ways. However, not all of them are equally good in terms of efficiency, cost of implementation and duration of saving the achieved result.
So, the easiest and most reliable way not only to remove the already formed rust on a metal product, but also to prevent the formation of a new one for a while is a special store tool. Alas, nothing can cope with corrosion better than specialized chemistry. In our case, it is a rust converter. Anti-corrosion agents are different: some can be liquid, others in the form of a gel. In both cases, the composition is recommended to be applied to the problem area with a brush.
After applying the converter in place, all that remains is to wait. As a rule, the process of removing corrosion by chemical means takes from 10 to 30 minutes. The remaining gel is washed off with ordinary water, after which it is recommended to walk around the place of cleaning with solvent 646. What to do if the rust is not removed the first time? In fact, everything is extremely simple - repeat the entire procedure.
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Separately, it should be noted that rust can be effectively removed from a metal surface with any acid that is not too strong. For example, orthophosphoric, acetic, citric acid is suitable for this task. True, “folk” remedies, unlike specialized anti-corrosion chemistry, do not cope well with deep rust, which is important to consider even before starting work.
In continuation of the topic, read about how to loosen rusty nutsso as not to break or tear anything.
Source: https://novate.ru/blogs/150422/62725/