Brief introduction of three kinds of powder coatings commonly used in electrostatic spraying

Powder electrostatic spraying is to use a high-voltage electrostatic spraying gun to atomize the powder coating and form a high-voltage electrostatic field between the workpiece with high-voltage negative charge and the grounded workpiece The electrostatic attraction makes the powder mist evenly adsorbed on the surface of the workpiece, and the uniform film is formed after high temperature curing and flowing dry The thickness of powder coating is generally 60-80mm, which has good mechanical and chemical properties Especially, the adhesion, impact resistance, wear resistance and corrosion resistance of powder coating with metal substrate are better than solvent coating, and it is widely used in various fields Powder coating is mainly divided into: epoxy type, epoxy / polyester type, polyester type three series of thousands of formulas, hundreds of varieties, colors, various Epoxy powder: this series of powder has excellent hardness and chemical resistance, high adhesion, good electrical insulation, suitable for electrical instruments, steel and wood furniture and other metal products Epoxy / polyester powder (M): this series of powder coatings is based on the epoxy / polyester system, because it improves the coating properties, over baking and salt spray resistance, making it a more widely used powder coating It has adhesion, corrosion resistance, impact resistance, gloss can be selected from 5-95%, and the curing condition is 180 degrees Celsius *20 minutes Furniture, electrical appliances, instruments and meters of traffic vehicles, metal furniture and other indoor decorative and anti-corrosion work surface coating Polyester powder: polyester powder coating has excellent UV resistance, weather resistance and corrosion resistance The coating is widely used in transportation vehicles, agricultural machinery, building doors and windows, gardening equipment, pipes and other outdoor products.