Coated Aluminium Profile

Coating provides extra thickness over aluminium and gives extra protection from corrosion. The raw aluminium from mills is very dull and coatings enhance the appearance and look. Coating can protect from wear and tear. Also, mill finished aluminium has dye marks and coating can hide the dye marks. Coating can increase reflectivity of materials, electrically insulate the materials and hardness of material. Powder coating is one of the most common used coating types. Electrostatic process is used for anodising. The powder-coated aluminium profile is made by the electrostatic coating basis. Electrostatically charged dry powder is sprayed for coating.

The dry powder adsorbs on the aluminium profile, after more than 200°C bake temperature, the powder solidifies into a layer of more than 60 microns thick solid bright coating. The aluminium profiles are good decorated and protected by the paint. Powder coated aluminium profiles have been widely used in building doors, windows, curtain walls and other products for many years because of their small specific gravity, easy processing, and high mechanical strength.

Firstly, pre-treatment is done in acid/alkali solutions to remove dirt, grease, and impurities. Secondly, powder coating process is done. Dry powder, consists of resin and pigment, is electrostatically charged in a gun, and sprayed to the aluminium section. The powder gets attracted to the metal, then sprayed object is heated in an oven. Subsequently, dry powder fuses, melts and form a coating over the surface of the profile.

Powder coated aluminium profiles can match any building colour scheme and have unlimited colour choices. Furthermore, powder coating can be done on any surfaces such as steel, aluminium, wood, and composite materials. Also, it can be easily dented and repainted as well as the product maintains same colour and texture after that.