Introduction to surface preparers

Surface preparers are products or equipment used to condition and prepare different types of surfaces before the application of coatings, paints, adhesives or other treatments. Its main function is to ensure that the surface is clean, free of contaminants and with the appropriate characteristics to guarantee optimal adhesion and durability of the subsequent treatment.

This process is essential in the construction, industrial maintenance and manufacturing industries, since inadequate preparation can compromise the integrity and useful life of the applied coatings. Surface preparers range from chemical agents to specialized physical and mechanical methods.

Chemical preparations

Chemical primers are substances designed to remove specific contaminants such as oils, greases, oxides, or organic and inorganic residues from surfaces. These products may include degreasers, stripping acids, phosphatizers, and surface activators.

Its application is especially indicated on metal surfaces where deep cleaning is crucial to avoid corrosion and ensure the adhesion of anti-corrosion paints or coatings. Chemical preparers should be used with caution, strictly following safety and environmental recommendations.

In addition, some chemical preparations act by chemically modifying the surface to improve affinity with the coating, such as phosphatizers that create a layer of iron phosphate that facilitates adhesion and protects against oxidation.

mechanical trainers

Mechanical methods for preparing surfaces include techniques such as shot blasting, sanding, brushing, milling, and abrasive blasting. These processes physically remove layers of dirt, rust, old paint and other impurities, leaving the surface clean and rough for improved adhesion.

Shot blasting, for example, consists of projecting abrasive particles at high speed onto the surface, achieving an optimal anchoring profile for coatings. This technique is widely used in metal structures, tanks and pipes in the petrochemical and naval industries.