PVDF – Fluorocarbon Spraying

PVDF – Fluorocarbon Spraying Introduction

PVDF coating (Fluorocarbon Spraying) is the first choice of fluoropolymer coating for architectural application, which is called PVDF fluorocarbon coating for short. Its resin system usually contains 70% PVDF resin and 30% acrylic resin, and excellent weather resistant pigment is selected. It is the preferred surface coating product in metal building materials industry. PVDF fluorocarbon coating is mainly used in all kinds of aluminum building materials, including curtain wall aluminum plate, aluminum profile, window lattice, ceiling, column, etc., with a service life of more than 20 years. Before coating, the base material must be pretreated by chromizing. Generally, the construction processes of two coating and one drying, three coating and one drying and four coating and two drying are adopted.

The application proved that PVDF fluorocarbon paint has excellent weather resistance on the surface of external aluminum, and has high performance of anti pulverization, fading resistance, brittle crack resistance and anti peeling. Its long-term pollution resistance and chemical erosion resistance can significantly reduce the maintenance and repair costs.

PVDF fluorocarbon coating has chemical inertia, which can highlight the resistance to color and luster degradation, as well as acid rain and strong ultraviolet light and other harsh environment. The results of 10 years exposure test ensure its excellent durability, aama2605 is the first choice of performance standards.

Aluminum Veneer of Curtain Wall

The surface of aluminum veneer of curtain wall is usually treated with fluorocarbon spraying after cleaning and chromizing. Fluorocarbon coatings are divided into primer, topcoat and varnish, and the main component is polyvinyl fluoride resin (kynar500). Generally divided into two, three or four coating. Fluorocarbon coating has excellent corrosion resistance and weather resistance, can resist acid rain, salt spray and various air pollutants, excellent cold and heat resistance, can resist strong ultraviolet radiation, can maintain long-term non fading, non powdering, long service life. High quality fluorocarbon coatings from TIGER, PPG, TIGER, AKZO, KFCC, KGE and other world-famous fluorocarbon coating manufacturers are selected for the surface, with a wide range of colors. Customers can choose or provide color plate samples directly according to the color plate provided by the manufacturer.

Advantages and disadvantages of fluorocarbon powder spraying

◎The fluorocarbon powder coating is solid powder, completely free of any solvent, and does not produce any organic waste gas and wastewater in the process of production and construction, which not only meets the requirements of environmental protection, but also saves the cost of waste gas and wastewater treatment;

◎It is different from solvent based fluorocarbon coating in the construction process, so it can reduce the labor cost without mixing paint;

◎Compared with the solvent based fluorocarbon coating, the power consumption in the construction process is smaller, which can save the cost;

◎Only one coating is needed, the process is easy to operate, and there is no need to add production equipment;

◎Not only horizontal spraying but also vertical spraying can be used in the construction process, which can reduce more costs;

◎Fluorocarbon powder coatings can not replace solvent based metallic fluorocarbon coatings due to many problems and defects in metal color.