Powder coatings have their unique construction requirements, storage methods and broad development prospects.
The powder coating uses the principle of electrostatic spraying to adsorb the dry powder on the metal aluminum profile. After baking at a high temperature of 200 ° C or higher, the powder is solidified into a thick and bright coating of about 60 μm thick. The product surface is smooth and smooth, and the color is uniform. It has strong acid resistance, alkali resistance, crash resistance and wear resistance. It can withstand strong ultraviolet radiation and acid rain for a long time without the phenomenon of powdering, fading and falling off of the coating. Powder coated aluminum profiles have a service life of 30 years under normal conditions. The surface coating ensures no fading, no discoloration, or cracking within 5-10 years. Its weather resistance and corrosivity are better than ordinary aluminum color diversification.
Although the variety of powder coatings is not as extensive as solvent-based coatings, there are many polymer resins that can be used as powder coatings. The total can be divided into two categories: thermosetting and thermoplastic.
The principle of coating extinction and its application In recent years, China's coatings industry is in the ascendant, and the total output of coatings has also leapt to the forefront of the world, forming an industrial group related to this, actively promoting the technological revolution and development in the field of traditional coating.