Where are exterior wall paints generally used?

Coating is a mixture of organic or inorganic materials used to decorate and protect items. The origin of the paint is uncertain. In 1500 BC, the Egyptians used dyes such as indigo and madder to make blue and red paints, but the paints were far from perfect. In the early days, most paints used vegetable oil as the main raw material, so they were called "paint", such as healthy, environmentally friendly and original mature tung oil. Whether it is traditional coating products using natural substances as raw materials or modern coating products using synthetic chemical products as raw materials, they are all organic chemical polymer materials, and the coating film formed is a polymer compound type. According to the classification of modern chemical products, coatings are fine chemical products. Modern coatings are gradually becoming a multifunctional engineering material and an important industry in the chemical industry. Paint is the ancient name; coating is the modern name, contains more scientific and technological components, and is widely used in modern technology and industrial fields. However, some smooth and customary names for paints are still retained, such as latex paint, primer, topcoat, etc. Generally speaking, paint is a material that can be coated on the surface of the object to be coated and form a firmly adherent continuous film. It can be either inorganic, such as electroplated copper, electroplated nickel, electroplated zinc, etc. It can also be organic, such as most organic polymer materials. Organic polymer materials constitute the main part of today's coating market.

As an ideal performance of coatings, it not only protects and beautifies the base material, but also gives special functions that the base material itself cannot have. Using some new base materials, the coating can achieve amazing high performance Chemical, high value-added, high-grade effects, such as highly weather-resistant fluororesin coatings, have achieved good results in construction. Because fluororesin coatings have excellent weather resistance, durability, and chemical resistance compared with other synthetic resins. However, fluororesin is relatively expensive, and its use in building exterior wall decoration is greatly restricted. Pay attention to the development of water-based fluororesins, especially the fluororesin-modified polymer emulsion with vinyl fluoride as the main body, making it a high-quality base with good performance, high grade, and acceptable price. materials, laying the foundation for the development of high-performance, high-grade coatings.