This building material cannot be attributed to the category of the main material, rather, on the contrary, it is auxiliary. Eats those that are used for important purposes, but with all this is not important and fundamental. But also do not think that it is not necessary to use it during certain repair work.
Just the opposite, the primer is the building material, which cannot be dispensed with during the repair, since the future of all repairs in your apartment depends on it. So, the primer helps evenly distribute to all layers of subsequent materials, as well as ensure their absorption deep into the surface. This is a fairly important and necessary property, thanks to which the same helmet does not exfoliate, and for a long time remains on the surface of a tree, reinforced concrete or even metal. When choosing a primer, pay attention to the material for which the use of a primer is intended, as well as consult a specialist. This is the only way you can choose the primer that will be intended specifically for you. Good repair, ladies and gentlemen.