Though it may seem simple, painting on a surface requires the control of several stages before the final result may be obtained. As an example of the difficulties inherent to this operation we can refer to the thousands of square meters of surfaces that get damaged by having only been painted.
In order to minimise the chances of failure and to guarantee the quality of the work, one must monitor closely the process, and this includes defining the painting scheme to be used, selecting the products and the methods for applying them, and specifying the degree of surface preparation and the curing process for the materials.
Applying paint on reinforced concrete surfaces, besides making them impermeable to liquid water, also reduces the effects of the carbonisation and of the penetration of chlorides, and therefore, increases the durability of the constructions.
On metallic surfaces, painting is the cheapest way to protect them from corrosion. The layers of paint must follow predetermined specifications in order to guarantee an efficient protection for a reasonable minimum period of time: good adherence, good penetration in the pores or irregularities of the metal, impermeability to water, presence of inhibitors that favour the passivation of the metal, low electric conductivity, etc.
With the use of industrial coatings we can protect the substrate from environmental aggressions, as chemical as physical ones. It´s very important to control the thickness and homogeneity of the coating layer to get the expected performance and durability.