Paint also has a shelf life?

Yes Paint refers to all kinds of paints, and there are many kinds. According to the customs of Shaoxing people, lacquer generally refers to wood lacquer, which can protect the surface of furniture and play a decorative role. At present, polyester paint is the most widely used decoration material for residents in our city. It is a solvent-based coating with polyester resin as the main film-forming raw material and various auxiliary materials, all of which have corresponding shelf life.

The shelf life of paints is basically 12 months after leaving the factory, and the shelf life of some famous brands in polyester paint is 24 months after leaving the factory. When consumers buy coatings, they should first check the factory date and shelf life on the product packaging to prevent them from buying coating products that have passed the shelf life or are about to pass the shelf life.

High-quality paint can not only make up for the defects of previous decoration, but also enhance the taste and grade of the whole decoration, giving the family richer cultivation and connotation. Paint that has passed the shelf life is likely to affect your decoration effect. According to insiders, polyester paint is a solvent-based coating made of polyester resin as the main film-forming raw material and various auxiliary materials. After the shelf life, on the one hand, the paint may deteriorate and change its original characteristics, which greatly reduces its performance and internal performance.

On the other hand, because it is a solvent-based coating, various chemical solvents are easy to volatilize after a long time. Especially at present, polyester paint products are packaged and sold with corresponding curing agents and diluents, and they are used in strict accordance with the regulations of manufacturers. If the time is too long, the curing agent may coagulate and the diluent will volatilize, which will lead to the wrong matching or failure and seriously affect your decoration effect.

Extended data

English name of paint: paint or coating. Paint is a kind of chemical mixture coating, which can firmly cover the surface of objects and play a special role in protection, decoration, marking and so on. The authoritative work "Coating Technology" in China coating industry is defined as follows: "Coating is a material that can be coated on the surface of an object through different construction processes to form a solid film with firm adhesion, certain strength and continuity. The film formed in this way is commonly called coating film, also called paint film or coating. "

Coatings are generally composed of film-forming substances, fillers (pigments and fillers), solvents and additives. According to the performance requirements, sometimes the composition will change slightly, for example, there is no pigment and filler in varnish and no solvent in powder coating.

It belongs to organic chemical polymer material, and the formed coating film belongs to polymer compound type. According to the classification of modern chemical products, coatings belong to fine chemical products. Modern coatings are gradually becoming a multifunctional engineering material and an important industry in the chemical industry.

References:

Baidu encyclopedia entry paint