Water-dispersion paints are not suitable for metal, since iron has the ability to oxidize under their influence.
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For painting metals, it is necessary to use special materials that will provide protection against corrosion.
Let’s start with the roof. Perhaps its painting can be attributed to the most complex.
Metal roofs can be divided into three groups, according to materials applicable to them.
Black iron.
Galvanized iron
Non -ferrous metals.
We will not consider the third group, since non -ferrous metals are very expensive, so they are not so widespread.
The other two groups are less, and therefore are more often used in production, but they are still more expensive than the slate.
There is nothing to talk about ferrous metals, they must be painted, most often they use oil or alkyd paint for this. However, in order to paint it less often, it is better to use acrylic enamels for roofs that prevent corrosion. Of course, they are more expensive, but you will have to repaint much less often.
It is also worth noting that such enamels are very elastic, since the metal, when the temperature changes, is expanded.
In conventional colors, elasticity is almost absent, and in the process of aging, they completely lose it.
What can be said about a galvanized roof?
The zinc layer will be protected for the roof for 15 years, but after this period you will need painting.
Ordinary oil paint is not suitable, exactly like alkyd. They will last no more than one season, but the acrylic enamel will serve for more than one year.
You can prove the iron sheet by painting it after that acrylic enamel against corrosion. As a result, you will get a semblance of metal tiles, only much cheaper.
Thus, you can paint a garage, hangar, fence, gate and even whole cars. Even if there is rust on the surface, it is not necessary to remove it before painting, anti -corrosion paint blocks its expansion and destroys the already emerging.
If there are too many rusts, then you can apply a special acrylic soil that prevents corrosion, and then feel free to apply the paint. Another plus is the lack of smell and quick drying.
Therefore, now you can not stock up on gas masks and special dressings before starting coloring.
