Development of exterior wall coating

The paint is a mixture of organic and inorganic materials, used for decoration and protection of goods. The source of this picture is still uncertain. In 6000 BC, the Chinese by mixing inorganic compounds and organic pigment paint was also improved. In 1500 BC, the cave of France and Spain, the paint is used for painting and decoration. In 1500 BC, the egyptians use indigo and madder dye to make the blue and red paint, but the paint is still far from perfect. The 18th century, development and utilization because of linseed oil and zinc oxide, coating industry is developing rapidly. A major development in the 20th century, coating technology. A larger adhesion, higher gloss, flame retardant, corrosion resistance and high heat stability of all sorts of color coating. In the early days of painting, vegetable oils are used as the main raw material, so called 'paint', such as health, environmental protection and ecological practice tung oil. With natural materials as the raw material of traditional coating product and synthetic chemicals as raw material to the modern development of paint products belong to organic chemistry, polymer materials, belong to the composite polymer formed film type. According to the classification of modern chemical products, paint belong to fine chemical products. Modern coatings is becoming a kind of multi-functional engineering materials, is an important industry in the chemical industry.