Overview
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ABSTRACT
Paint is a complex, most often liquid composition, designed to be applied in thin layers to supports on which it dries. Paint is used to both protect and decorate materials. Its protective function is more important on the exterior and its decorative function on the interior. Paints are designed to decorate and protect most materials used in construction: coatings of all types, concrete, bricks, stone, wood, metals, etc. They are processed products that can be applied as a liquid or a paste, and form solid adhering particles in a few hours.
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Read the articleAUTHOR
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Rolland CRESSON: Engineer, Director of IREF (Institut de Recherche et d'Étude de la Finition), - Créteil, France
INTRODUCTION
Paints and related products are finishing products designed to decorate and protect most building materials: plaster of all types, concrete, brick, stone, wood, metals...
These are processing products, applied in liquid or paste form, which in a few hours form solid, more or less flexible, adherent and protective films.
The drying phase is an important stage in the coating's future behavior. Regardless of how the products are dried, ambient conditions play a decisive role in the expected film formation.
Changes in health and safety requirements have made it compulsory to use water-dilutable products both indoors and outdoors. These new formulations impose more constraints than their predecessors, with regard to atmospheric conditions (delayed drying in damp conditions, risk of freezing in cold weather, etc.).
At the same time, the way in which products are applied requires a new approach, in that coats are no longer applied by criss-crossing them several times; they are laid down and tightened by themselves. Finally, the tools used for application are no longer the same: the bristle wicks of synthetic rollers and brushes have replaced natural bristles.
These developments have obliged the painters' profession to undergo specific training.
In this article, we explain the functions and various uses of paints, and then classify the products according to different criteria:
nature of their binders with a classification by chemical nature of the resins,
VOC (Volatile Organic Compounds) content in compliance with health and safety regulations,
performance specifications.
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Metal treatments
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Bibliography
Also in our database
Norms and standards
- Dictionnaire Technique des Peintures. - AFNOR NF T 36 001 : -
- DTU 59.1 : Travaux de peinture. - AFNOR NF P 74 201, -
- DTU 59.3 : Travaux de peinture de sol. - AFNOR NF P 74203, -
- DTU 42.1 : Travaux d'imperméabilité de façade. - NF P 84 404, -
- DTU 44.1 : Travaux de mise en œuvre des mastics. - NF P 85 210, -
- Classification des peintures. - NF T 36 005 : -
- Peinture...
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