solid powder coating

In the application of technology and electrostatic spray gun (Corona application) 60's medium-term field has set a milestone. For the first time it is possible to stream the powder coating and 

apply electrostatic charge. The initial low transmission efficiency is the recovery, so far in the practice of completely unfamiliar paint area, greatly improved the introduction, so that the process is economically attractive. Second charging methods, the results of the friction (friction application) on the powder particle charging show that in 1972. During installation, powder coating should be protected from wear and materials such as building mortar and brick cleaning agents. Once installed, the initial appearance of the maintenance of the powder coating is a simple matter. This is based on the surface of the dust and dirt from time to time contain 

moisture and salt, which will affect the powder coating must be removed. Powder coatings should be washed regularly (at least once less severe applications and in the marine and industrial 

environments, more times every 6 months). In contrast to the hitherto used, purely thermoplastic adhesives (polyamide, polyvinyl chloride in the early 60's) is a crosslinked epoxy resin market, 

which constitutes the foundation for future development.

With the development of mixed powder coating (epoxy resin and polyester as binder). Among them, according to the VdLs since since 1965, the emerging industrial powder coating, but before that mostly as experimental paint products manufacturer, which appeared in the strong growth in 1968. In 1966, the first powder coating plant in Germany completed and put into operation. In the first year of production statistics, in 1974, only 3369 tons produced in powder coatings. This is later to 10000 tons, an increase of 37500 tons and 70000 tons. Powder coatings are solid, solvent free coatings to be applied after fusion and chemical crosslinking to be coated, resulting in a closed, well adherent coating substrate. Efficiency can be achieved by effective powder recovery up to 98%. A high quality zinc layer is welded to the steel surface to form a strong, durable and impermeable coating on the zinc alloying reaction. This protection of the electrochemical protection of steel, also known as the sacrificial protection because there are damaged or slightly discontinuous seal coat, zinc, zinc at the expense of their own to protect it is the alloy steel. Will continue to do so until the last almost zinc atoms, and significantly reduce the corrosion of iron and steel. And organic coatings need to be updated regularly, the 

galvanized coating can not fall off, because it is the alloy of steel, coating surface of each product can be achieved during the hot dip process, both inside and outside the.