Is it necessary and what is the best way to rinse rust converter from metal before painting?

foto21675-1When corrosion occurs on the metal, the solution to the problem is to use a rust converter.

As a result of a chemical reaction with corrosion products, it is eliminated, and a protective layer forms on the surface, preventing further damage to the metal.

Should I rinse rust converter from metal before painting, what is the best way to rinse it off? You will find answers to questions in the article.

Is it necessary and why to wash off the composition?

foto21675-2Rust modifiers are chemical products composed of special compounds. In the process of exposure of the rust converter to the areas of corrosion, the conversion of iron oxide forms into phosphates occurs.

In order for the process to be as successful as possible, the surface must be prepared - it is thoroughly cleaned, trying to remove the loose layer.

After the end of the active reaction of the chemical and rust, you can start rinsing. This is done after the metal surface has dried. At this stage, the surface is cleaned with a stiff brush and treated with the selected agent.

Transducers can be produced in various forms: from liquid to thick pastes and gels. The texture of the product affects the ease of use and distribution of the product over the surface.

Their composition can be both acid-free and acid-containing.... Most often, acid modifiers contain orthophosphoric acid.

Taking into account the composition of the drug used, it is determined whether a wash is needed and what kind. Acids are chemically active substances, the reaction of which can continue on the metal even after painting.

What happens if the product is not washed off?

Removing most of the transducer is a necessary process. The active components of the agent that remain on the metal can themselves serve as a source of surface destruction - corrosion.

If the previously applied product has not been washed off, then the subsequent paintwork will not be durable, and corrosion processes can continue right under it.

Acid-containing converters, for example, based on phosphoric acid, can partially remain on the surface, not fully reacting with the corrosion products.

Unreacted, they will continue to have a caustic effect... As a result, rusting will return and may even become more intense.

Many rust removers are not primers and will not provide reliable adhesion.

Washes options

Various means can be used to flush the transducer. All of them are available and are not difficult to apply. They should be used in conjunction with mechanical cleaning with a stiff brush.

Water

The easiest way to flush the transducer is with water. For these purposes, it is better to use a sponge with a hard side.... This will ensure thorough removal of chemical residues.

Silicone degreaser

foto21675-3Silicone removers (degreasers) can be used to clean the surface and remove rust modifier residues.

They improve adhesion and finish quality. For the best effect, it is advisable to wash off twice..

As a result, the surface becomes ready for further processing and application of the final composition.

White Spirit

A convenient washing option is to use White Spirit. It is used in pure form without diluting... To do this, the finished product must be applied to the surface and wiped off.

Soda solution

Another option for washing is using a soda solution. It needs to be made very concentrated.

A well-mixed solution with a hard sponge should be applied with rubbing movements. After processing, rinse off so that no undissolved grains remain on the surface.

How to wash off the rust converter with a soda solution, the video will tell you:

Alcohol

Alcohol solution is another way to neutralize the agent used against corrosion. For these purposes, you can even use vodka..

Laundry soap

Laundry soap for washing the converter must be grated and diluted with water. The proportion is arbitrary. The resulting solution will not only neutralize acid, but will also increase adhesion.

Recommendations to help

For more successful work on removing rust from metal, We recommend using the following tips:

  1. foto21675-4If the rust layer is more than 0.1 mm, simply scraping the surface may not help - a transducer must be used.
  2. The use of any chemicals should be carried out only after studying the instructions for a particular product.
  3. The more carefully you rub in and the better you distribute the transducer, the higher the effect will be.
  4. Oily areas must be degreased before starting treatment.
  5. Painting should only be done after the remover has completely dried.

Find everything you need to know about rust converters in this section.

Conclusion

Work on the restoration of corroded metal must include a set of measures. Among them is the use of a converter. In order for the corrosion to stop and the top coating to hold well, washing is carried out - a high-quality removal of the reagent and its residues from the metal surface.

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