A reliable way to paint metal if laziness cleans it of rust

Experienced experts know that often paint metal rust does not make sense. Due to the fact that an excessive amount of air and moisture accumulates inside the rusted material, even after painting, the rusting process does not stop.



However, in some cases, this method of painting is still permissible. The only thing to keep in mind is that not all paint is suitable for this. Anyone who intends to paint rusted metal should know how to choose special means for this procedure. And that's what the editorial board is all about. "Site" He'll tell you today.

The first thing that determines the possibility of painting without cleaning is the density of the rusty layer. A small layer of rust will not prevent the paint to connect tightly with the body of the product. But with more advanced corrosion, the imposition of a protective coating on metal objects, alas, does not make the slightest sense.

Flawless repair

Equally important is the surface quality of the material being painted. If there are any bloating or detachment on the rusted surface area, the protective layer will also not be able to fix well on the colored material.



Even in cases where cleaning of metal from traces of corrosion is not required, before painting it is still necessary to carry out a minimum preparatory treatment. This can be done with the help of aerosol degreasers or a conventional brush (rag) and solvent.



In addition, before painting, it is necessary to thoroughly dry the detail. This is to reduce the risk of premature damage to the new coating. For the same purpose, the very procedure of metal staining should be carried out exclusively in sunny and dry weather.

As for the choice of paint products, preference should be given to those that are able to modify the composition of the existing layer of rust for partial passivation and slowing down corrosion. In addition, it is important to consider the weather resistance of the paint.



To protect the product from further development of corrosion, you should cover it exclusively with the paint in the marking of which after the letter code through the hyphen the number 1 or 5 is indicated.

It is also worth noting that the most effective in countering rust are alkyd and polyurethane enamel paints.



As for the method of application, it is better to cover the metal with a two-component paint, having previously treated the surface with a passivating composition. It is this coloring that will ensure the formation of a durable protective film.