Types of the best paints for metal - compositions, differences and methods of application for interior and exterior work

Nitro paints (NC)

They can be produced in the form of an aerosol in special cans, in the form of a solution or a dry mixture, which is diluted with any solvent. The advantages include low cost, quick drying, and the ability to remove with a solvent.

At the same time, the number of disadvantages clearly outweighs them - these include poor adhesion to the base, which simply leads to shedding of the coating, greater vulnerability to sunlight, high consumption per unit area, extremely pungent odor and high toxicity, which makes this composition practically inapplicable for interior work .

Pentaphthalic (PF)

This type of paint and varnish products is universal, but at the same time it is of little use for use on metal, since it has a low level of adhesion to this material, to improve which it is necessary to use special primers.

Paint dries very slowly and at low temperatures this process can take an indefinitely long time. With intense exposure to sunlight, the coating quickly fades.

But despite all the disadvantages, there are also advantages - a fairly long service life for products of proper quality and a large selection of colors and shades. Hardened paint can be dissolved using white spirit.

Metal surface painting technology

Before applying white or colored paint to metal, inspect the surface. Carrying out technological steps is not an unnecessary action. The fact is that compliance with the technological stages results in a high-quality coating that can be used for a long time.

If the metal surface is rusty, then it is necessary to first remove the rust and treat it with special compounds. Most often they have a specific green or brown tint.

Then, select your own paint coating for each type of metal:

  1. Alkyd compounds are mainly used for ferrous metals and galvanization.
  2. For colored ones, epoxy ones are suitable.


If the metal surface is rusty, then it is necessary to first remove the rust and treat it with special compounds.

Sequence of work execution

It is necessary to maintain the gradual application of paint on metal surfaces:

  1. The surfaces are cleaned with special brushes and tools, eliminating all irregularities and oxidation products.
  2. Then a primer is applied, which increases adhesion.
  3. Then they paint in as many layers as possible to achieve the desired effect.


Paint in as many layers as necessary to achieve the desired effect.

Using these recommendations for the application and selection of paints for metal and focusing on the rating, you can create a high-quality coating that will serve for a long period of time.

Rubber

Rubber paint is a more modern alternative to its ancestor - the famous bitumen paint, which was made from bitumen resin. She inherited all the unique qualities of her ancestor, but at the same time acquired a more tidy appearance. This composition ideally isolates the metal surface from any mechanical damage and environmental influences, which virtually completely eliminates the possibility of corrosion.

Good adhesion allows this mixture to easily apply to any surface with different coatings. However, the high price and low consumption slightly reduce its popularity.

Popular manufacturers

Given the wide range of products from different companies, buyers often cannot navigate and make the right choice. Almost all popular manufacturers adhere to the rules for making paints and comply with the requirements.

But among the most popular ones, the products of which are in demand, include “Tex”, “Tikkurila”, “Hammerite”.

Regardless of the brand, it is recommended to study the characteristics of each paint individually, since it is easy to make a mistake when choosing, but correcting the situation after the work will be problematic and expensive.

Hammer

This paint contains polymer resins that have excellent adhesion to metal and form a very strong and durable coating that reliably protects it from corrosion. As can be judged from numerous photographs, it is somewhat reminiscent of the imprints of a large hammer in its texture, which explains the very unusual name.

This product is sold as a ready-made mixture, mainly in cans. It can be used without prior priming, since it itself is to some extent endowed with the qualities of a primer, filling all the small cracks and irregularities on the metal surface.

The product is absolutely insensitive to the effects of humidity, temperature changes and ultraviolet radiation, resistant to mechanical damage, and has increased heat resistance. But there are also disadvantages, which include high cost, high consumption of material, and difficulty in removing the old coating.

How to choose?

In the store, paint is presented in a wide range from well-known brand manufacturers and budget ones, which almost no one knows about. It’s easy for a novice and even an experienced builder to get lost in what they see. You should choose based on general characteristics:

  • Metal and its purpose. Steel and aluminum are painted with different mixtures. This is due to the characteristics of the coating. The purpose of the structure also plays a role.
  • Terms of Use. Consideration must be given to maximum and minimum temperatures, how humid the environment is and the risk of mechanical damage. Ignoring the requirement will lead to rapid wear of the paintwork.
  • Type of corrosion and level of protection. Complementary qualities. Neglected structures require the use of enamel with strong restorative and protective properties.
  • How quickly it dries and how toxic it is. Near water, the best option is quick-drying. When working indoors, use long-drying mixtures that are not harmful to health.
  • Color. Some designs, according to the rules, are painted in certain colors.

Polymer (forging)

This product is ahead of all its competitors in all respects, which it makes no sense to list, since they are much better than all previous products. This explains the high cost, which is fully justified, since the service life of such coating is at least 20-30 years.

Forge paint has one peculiarity; it should be applied only to a special primer intended exclusively for this type of paint.

Acrylic

Previously, such paints were not used for painting metal; they were used mainly to paint surfaces made of wood, concrete, plasterboard, brick and others. But later it turned out that they are ideal for metal. Such mixtures are made on the basis of a water emulsion with the addition of polyacrylate, dyes and a special anti-corrosion additive.

Acrylic paints are absolutely non-toxic, completely odorless, and when applied form a strong and durable coating. They are well suited for painting heating appliances due to their insensitivity to high temperatures and have a large catalog of colors and shades.

Recommendations

To get the maximum result from your purchase and enhance its qualities, as well as to fully understand the benefits of the mixture, it is recommended to listen to the simple advice of experts. They can increase the effectiveness of the paint and varnish mixture.

  1. Before making a purchase, carefully study the instructions. In some cases, special solvents may be required. In this case, immediately purchase additional products and strictly follow the instructions.
  2. Certain mixtures position themselves as 3 in 1. But, if time permits, additional funds will not be superfluous.
  3. Only the manufactured structure is painted after the metal has completely cooled. Then they clean the seams and then proceed to the final stage.
  4. Carry out external work taking into account the temperature (over 27 degrees - postponed). Likewise if it is too low. Since the dye will quickly harden and will not be able to fully affect the material.
  5. Despite the fact that the instructions indicate the possibility of application to an unprepared surface. Experts recommend preparing and degreasing it. In this case, the paint will react more effectively and the result will be better.

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