How to make a metal primer yourself

As you know, metal is a material that is unstable to corrosion, therefore, a primer is used to protect it from this unpleasant phenomenon. In addition, the soil composition is able to extend the service life of metal surfaces, protecting them from many negative environmental factors. About the methods of independent manufacture of a primer for metal, let's talk further.

Content:

1. Metal primer - characteristics, description, types
2. Metal primer price and choice features
3. Metal corrosion primer: features of acrylic compositions
4. Features of the primer for metal for external work
5. How to apply a primer metal: metal coating technology with a primer

Metal primer - characteristics, description, types

Any type of primer contains special substances called inhibitors. With their help, it is possible to provide metal protection primarily from corrosion.

After applying any type of primer to the surface, a protective film is formed that prevents the effect on this item of moisture, fungus, corrosion and other irritants.

Another primer task is to improve the adhesion between the painted surface and the coloring composition or finishing material. Therefore, before performing internal or external wall decoration, they are necessarily covered with a primer in several layers.

The primer is also an antiseptic drug that prevents the development of fungus and mold on any kind of surfaces. However, in order for all of the above -mentioned primer functions to be performed, it is necessary to choose the right composition for a particular application.

In addition, an important role is played by the basis for which the soil, the time of work, climatic conditions, etc. In relation to the type of metals, they are colored and black. Depending on this factor, it is necessary to select a primer.

For aluminum surfaces, it is recommended to use compounds containing zinc or having a uctic base. For steel, the primer contains the zinc phosphate most suitable for steel. To cover copper, brass or bronze, epoxy or polyurethane varnish is used.

We offer to get acquainted with the main types of primer for metal external and internal work:

1. The soil of the phosphate type - it contains two components, for the manufacture of which the diluent and orthophosphoric acids are used. The primer has a wide sphere of use, suitable for metal surfaces of any type. After applying to the surface, adhesion with any paints and varnishes improves significantly.
2. A primer of an insulating type - consists of two soil interconnected - epoxy and alkyd. Provides reliable protection of metal from high humidity. As additional substances in the composition of the primer, Beril is used on a zinc basis. Most often used on metal surfaces, however, it is also allowed to be used for non -ferrous metals.
3. Passive type primer - prevents the development of corrosion on metal surfaces. This effect is achieved by reducing the electrochemical characteristics of metal surfaces.
4. A primer inhibiting type - after application, can form a special film on a metal surface, which not only prevents metal corrosion, but also provides its protection against mechanical damage. This properties can be achieved due to the fact that there is a zinc in the composition of the material. An excellent tool for metal surfaces located outside the room and amenable to constant moisture.
5. Anti -corrosion options for the primer are used for application to metal surfaces, which were previously subject to corrosion processes. However, before applying the soil, the surface must be carefully cleaned of rust and polished. After applying the soil on the metal, a film is formed that protects it from moisture and, accordingly, from corrosion.
6. A primer for metal in rust is a converter is the easiest way for metal primer. If the metal object was previously covered with rust, then it is sufficient to apply a primer on its surface and corrosion is converted into self -destructive compounds. The primitive composition is characterized by the presence of special substances that quickly penetrate inside the surface covered with rust and destroy it. In the same way, paint is removed from metal objects. It is enough to cover it with this solution and the surface is self -cleaned. After that, it is recommended to cover the metal surface with a passivating primary option for its further protection against corrosion.

Metal primer price and choice features

There are certain criteria for choosing a primer for metal, adhering to them, it is possible to choose a material that copes with the tasks set before it.

First of all, decide on the type of metal that can be processed. Next, determine the functional purpose of the primer. It is also necessary to take into account the conditions under which the primer will be applied to the surface, it is humidity and temperature, the presence of direct ultraviolet rays. Next, take into account the tool that is designed to apply soil, it can be a roller, brush or spray gun. Application of soil with a roller increases the consumption of the material and is relevant only when the work is carried out on a large surface area. A brush is a standard option suitable for any surfaces. If the subject is still voluminous, then it is better to use a spray gun that will not only reduce the consumption of the material, but also evenly cover the entire metal object.

The amount of the primer for metal is determined by various factors, among which the type of surface, the number of layers applied to it, etc. should be distinguished. When using frost -resistant compositions, before applying them, the metal is covered with a moisture -repellent primer. When buying a primer for metal, it is also necessary to purchase funds in the form of gloves, a respirator and glasses that protects a person working with a primer. It is especially important to use these funds when working with a spray.

Metal corrosion primer: features of acrylic compositions

This composition is characterized by the highest drying rate. In addition, an acrylic -based primer does not contain a substance dangerous for human health, does not have an unpleasant odor and is environmentally friendly. With the help of such soil, it succeeds:

• Lease the surface and hide certain defects;
• disguise previously formed surface defects;
• Create high -quality coating with high adhesive properties.

Keep in mind that the acid version of the soil cannot be stained. Application of paint to such a surface will lead to an uniform distribution, the appearance of divorces. With the help of acrylic, it is possible to create a strong coating isolated from all kinds of pernicious effects. In addition, such a primer has a small consumption.

Some acrylic -based primer options have various color shades. Most manufacturers produce the composition only in gray.

Quite often, acrylic-styls are used as soil for metal, which differ in such advantages:

• creating an excellent anti -corrosion protective film;
• high drying time, regardless of weather conditions;
• high resistance of color, which persists for five years;
• resistance to temperature changes;
• resistance before moisture and adverse weather conditions;
• Duration of operation.

Acrylic primer is a universal composition that protects the metal from the destructive action of many factors and at the same time stains it.

Features of the primer for metal for external work

Before considering the compounds to perform metal processing, we suggest that you familiarize yourself with their main functions:

• The primer provides better staining of the metal surface;
• Using a primer, it is possible to improve adhesion between the metal and the paintwork, and the coating strength improves;
• the porosity of metal surfaces is reduced;
• improving the opposition of moisture metal;
• The duration of the metal of the metal increases.

For outdoor work, these options for metal soils are used:

1. Converter.

The composition that turns iron oxide into other compounds. Thus, it is possible to quickly and efficiently save the metal from rust.

2. Tread.

A primer that protects the metal from the harmful effects of the environment.

3. Passivator.

In the presence of mechanical effects on metal parts, these compounds prevent their damage and protect them from moisture.

4. Insulator.

The coating in the form of a film is formed on a metal surface, which prevents the contact of the metal with moisture, thus protecting it from corrosion.

5. Two -component compositions.

They differ in an enhanced effect due to the content of two soil options in their composition. They have universal use.

How to apply a primer metal: metal coating technology with a primer

Before starting work, carefully study the instructions from the manufacturer on applying and breeding the material. Only after that proceed to prepare the metal for soil application.

Most often, preparatory work looks like this:

1. Dismantling the old layer of paint or other coating with an abrasive brush, a grinding machine or firing.
2. Cleaning metal to a natural base. At the same time, the coating should become rough. Thus, the clutch between the primer and the metal will be reliable.
3. Approaching the first layer of primer, its drying and applying the second layer.

Keep in mind, when choosing a composition for external processing of the metal, it is necessary to take into account the type of surface itself, as well as its finish coating, that is, the type of paint used in further work. Some materials are incompatible. When buying paint for metal, study the recommendations of its manufacturer according to the optimal type of primer, for this paint.

The type of material for covering the surface is determined primarily by functional purpose. Primary compositions are applied to the bare surface for the formation of a film that prevents corrosion. The drying time of such compositions is 24 hours or more. Fast -drying nitro soils are not used for metal surfaces, which will continue to be painted. Using separating compounds, it is possible to form a coating between incompatible materials.

An alcohol -based primer has the convenience of use, as it quickly dries and does not lend itself to shrinkage. If you are going to clean the rust with a special primer, then still before applying the composition, it is necessary to clean the excess corrosion with a brush.

The metal is coated with a primer in several layers, with intervals until the composition is completely dry on the surface. The preparation of a primer for metal at home is almost impossible, since these materials contain a large number of chemical reagents, which need to be combined in a strictly defined proportion.

The primal primal metal performs several functions at once:

• converts rust;
• provides protection against corrosion;
• Decorates the surface, staining it in a certain color.

These compositions quickly dry, differ in resistance before moisture, corrosion, temperature changes. An elastic film is formed on a metal surface, resistant to mechanical damage. In addition, the composition is perfectly connected to the metal, converting the rust on it.

However, enamel primalies are not recommended to be used for painting objects that can be highly heated. Since due to exposure to high temperature metal, the primer emits an unpleasant odor.