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Industrial Painting

Varnishing products are liquid or powder substances, capable of forming a solid, continuous and adherent film if laid or deposited in a thin layer on a surface.

The painting of steel structures is intended to protect them from corrosion mainly due to chemical strain, medium and high temperatures, climatic and atmospheric strain, condensation and induced currents. Paints suitable for containing drinking water or foodstuffs are also available.

A normal painting cycle consists of a specific coat of primer which is suitable for the surfaces to be treated, two intermediate coats and a finishing coat. The on-site application procedures essentially vary depending working conditions, type of profiles or surfaces to be treated and the product to be applied.

The applying methods are mainly carried out using brushes, rollers, and airless tools.

The choice of the proper method of painting and products depends on careful planning that takes into account the function of the product, its nominal life, the identification and classification of environmental corrosion, the programming of periodic maintenance and the shape.

Main standard references

UNI EN ISO 2808:2007: paints and varnishes – determining the film thickness.
UNI EN ISO 12944-1:1998: protection against corrosion of steel structures by means of protective coating systems – general introduction.
UNI EN ISO 12944-2:1998: classification of environments.
UNI EN ISO 12944-3:1998: project considerations.
UNI EN ISO 12944-4:1998: surface type and surface preparation.
UNI EN ISO 12944-5:2007: protective coating systems.
UNI EN ISO 12944-6:1998: laboratory tests methods.
UNI EN ISO 12944-7:1998: carrying out and supervision of painting works.
UNI EN ISO 12944-8:1998: development of specifications for new work and maintenance work.