In modern construction, galvanized metalused quite often. He became popular thanks to reliability and practicality. But the zinc coating has its drawbacks, expressed in low resistance to corrosion. The material, though not so much exposed to this impact, like steel, but if you want to achieve long-term operation, you should cover the surface with special paint.
The main types of paint for galvanizing
If you need paint on galvanized metal for outdoor use, then you should understand some varieties of such coatings. They are:
- acrylic;
- vinyl;
- alkyd;
- rubber.
Acrylics are usually made at the base.organic solvents, on sale can be found also water-dispersion compositions. Among the ingredients they contain anti-corrosion additives. With the help of acrylic paints, you can create a matte layer on the surface. The main advantages of these mixtures are: excellent resistance to external influences, UV light, excellent adhesion, excellent water repellency, durability and low cost.
Overview of the features of galvanized alkyd paints
Paint on galvanized metal for outdoorworks can be alkyd. If you compare with the above material, then using the first you can create a glossy finish. The manufacturing process uses anti-corrosive active pigment. Among other things, these paints have outstanding performance. In a wide range of modern market you can find alkyd compounds that can be used in the industrial environment and the maritime climate.
Overview of the features of vinyl coatings for galvanizing
Paint on galvanized metal for outdoorworks can also be vinyl. Recently, she began to gain popularity, due to some of its properties. The paint has a high weather resistance and copes well with exposure to high temperatures.
On the surface covered with material constantlytemperatures up to 70 ° C may be affected, temporarily the temperature may be increased to 90 ° C. However, the vinyl coating has some disadvantages, which are expressed in high cost. The price is justified by some positive qualities of durability.
Overview of the features of rubber paint for galvanizing
Paint on galvanized metal for outdoorThe works are also represented by a rubber coating, which is made on the basis of acrylic. Among the distinctive features - high elasticity. After drying, the top layer of such material will resemble rubber, thanks to which it is not terrible that mechanical forces, such as impacts, will impact the surface.
Such paints for metal surfacesthey are distinguished by durability, resistance to chemical influences, they perfectly undergo precipitation, they are environmentally friendly and have high decorative properties.
How to paint the roof of galvanized metal
If you need paint for galvanizediron than paint the roof, you have to think. Today the most common coatings can be called: acrylic dye, oil paints, as well as compounds with anti-corrosion properties. For such surfaces, special dyes should be used for the reason that the surface is more passive in galvanizing compared to ordinary metal. Therefore, the paint should be chosen with regard to high elasticity.
When choosing paint on galvanized surfacesExperts advise to pay attention to acrylic matte dye "Cycrol", which has high adhesive ability and excellent anti-corrosion properties. Among the advantages of this paintwork material should be highlighted: resistance to atmospheric influences, excellent tolerance to low temperatures and moisture resistance. This paint dries quickly enough after application, does not fade under the influence of ultraviolet and has water-repellent properties. Apply it on a dry and clean surface with a spray gun, roller or brush. If necessary, the composition can be diluted with a solvent R646 or butalacetate. Such a protective coating significantly extends the life of the galvanized roof.
Reviews of paint "Tsikrol"
This anti-corrosive paint for galvanizedmetal is a primer-enamel, which is made on the basis of acrylic resins and polymer additives. Organic solvents act as additional elements. According to buyers, this mixture has a high opacity of the painted surface.
Protect the mixture will be able even from exposuresalty air. Consumers emphasize that this soil is easy to use, has hydrophobic characteristics and is suitable not only for galvanized steel, but also for systems of drains, gutters, galvanized pipes, profiles, corrugated iron, and zinc iron.
Application of the mixture should be carried out on a surface free of rust, and if necessary, xylene or ethyl acetate can be used as solvents.
Consumers are advised to carry out work attemperature range from -10 to +50 ° C. Complete drying should be waited for 18 hours, this is true if the outside air temperature is + 20 ° C.
Conclusion
Applying a special paint coating ongalvanized surface will protect it from the negative effects of the external environment. However, experts recommend starting these manipulations only one year after the completion of the installation of roof structures.
За это время атмосфера подготовит основание к paint, remove rust and make the surface a little rough. If you want to do work in a short time, then you can prepare the surface yourself, but in this case you should try not to spoil a thin layer of galvanizing.
