New coatings to prevent the deterioration of the facades of the buildings
on June 21, 2011
The paintings Ayelenses company, with the support of the Instituto Tecnológico aido, is carrying out a project of research and development that aims to develop a family of coatings for the protection of the facades. Its objective is to obtain products with better functional properties than those used hitherto and less harmful for health and the environment, since in its manufacture will replace organic solvents by thinners that do not contain volatile organic compounds (VOCs).
With the passage of time, it is customary that in the linings of any wall or façade of a building are damp patches, cracks, crackled or blisters. In addition, this deterioration occurs most frequently in densely populated areas, where facades are soiled by deposition of sand, dust and soot. Acid rain is particularly aggressive because it penetrates deeply in the pores of the walls, causing changes in color and its decomposition. In this sense, the rustic texture and coarse-grained facades have a greater tendency to blank it and getting dirty than those with smooth and fine surfaces as the first dirt can adhere better.
The project aims to obtain a new product possessing the appropriate physico-chemical features to create different coatings with specific protective properties depending on the environment of the facade. In general (not counting the deterioration that suffers the façade or coating by the action of ultraviolet radiation-), most of the problems encountered are derived from the water. Specifically, the water can act in its liquid state by leaks of the subsoil or the own water from rain, and in its gaseous phase through the water vapour, here being their most critical action in saline or acidic environments. With this project, paintings Ayelenses and Aido are working on the creation of a product intended for professionals in the construction and reforms, easy to use and which does not require technical advice on site for your application, making it more economic and accessible to a large number of users.
