How much do you know about powder coated white aluminum?

Aluminum is one of the most abundant metals on the planet and is known for its lightness, strength and corrosion resistance. Untreated aluminum profiles are perfectly suitable for many applications. However, there are many valid reasons for treating the surface of aluminum profiles, including change colors to supplement corrosion resistance; increase hardness; prevent wear; and increase reflectivity. One of the most common processes is powder coated white aluminum. This article will help you understand it and its purposes.

What is powder coating?

It is a new type of solvent-free 100% solid powder coating. It has two categories: thermoplastic powder coatings and thermosetting powder coatings. The coating is made of special resin, pigments, fillers, curing agents and other additives, mixed in a certain proportion, and then prepared by processes such as hot extrusion, crushing and sieving. They are stable in storage at room temperature, electrostatic spraying or fluidized bed dip coating, and then heating and baking to melt and solidify, so as to form a smooth and bright permanent coating film to achieve the purpose of decoration and corrosion protection.

What is powder coated white aluminum？

Powder-coated aluminum is a beautiful and durable outdoor furniture material. It is both light weight and corrosion resistant. Powder coating is a polyester-based coating that uses polyester microspheres of uniform size that are electrostatically charged to adhere to the substrate. The coating is as thick as epoxy paint, but because it is electrostatically charged and then baked/cured to the substrate, it will not flake or peel off like paint or epoxy. The color is softer than others and the coating depth is greater.

Aluminum does not rust due to its properties. It will not have the red/brown rust color like untreated steel. On the contrary, it will oxidize to a cloudy white powdery finish for a long time under adverse conditions. To prevent this oxidation, we first use high-quality aluminum and powder-coated it using the above-mentioned process. The sealing layer formed on the outside of the aluminum material can be used as an anti-corrosion protection layer and form a uniform and beautiful finish on the aluminum material.

Advantages of powder coating

• The process is relatively simple, mainly due to the improvement of the automatic accuracy of the main equipment in the production process, and the microcomputer control of some main technical parameters can be realized, which effectively reduces the difficulty of process operation, and in the meanwhile, the auxiliary equipment is greatly reduced;

• The rate of finished products is high. Under normal circumstances, if various measures are appropriate, the production of unqualified products can be controlled to the greatest extent;

• The energy consumption is significantly reduced. In the production process of ordinary anodizing and electrophoretic coating, the consumption of water and electricity is quite large, especially in the oxidation process. The output current of the rectifier can reach between 8000~11000A, and the voltage is between 15~17.5V. In addition to the heat consumption of the machine itself, it needs to be continuously cooled with circulating water, and the power consumption per ton is often about 1000 degrees. At the same time, the reduction of auxiliary facilities can also reduce some power consumption;

• The degree of pollution to water and the atmosphere is reduced, and the caustic soda, sulfuric acid and other liquid organic solvents are no longer used, therefore, it reduceswater and air pollution, and effectively improve the competitiveness of aluminum profiles and plastic steel profiles as environmentally friendly products. More importantly, it reduces some production costs;

• The labor intensity of workers has been significantly reduced. Due to the use of automated assembly line operations, the feeding method and the use of fixtures have been significantly simplified, which has improved production efficiency and reduced labor intensity;

• The surface quality requirements of the wool have been significantly reduced, and the powder coating can completely cover the extrusion lines on the surface of the profile, cover up some of the defects on the surface of the aluminum profile, and improve the surface quality of the finished aluminum profile;

• Some physical indicators of the coating film are significantly improved compared with other surface treatment films, such as hardness, abrasion resistance, and acid resistance, which can effectively extend the service life of aluminum profiles.

Features of powder-coated white aluminum

• Lightweight: Powdercoated white aluminum is light and easy to move. It makes furniture rearrangement and product transportation efficient and easy.

• Durability: Although very light, powder-coated aluminum is tough. It can withstand harsh outdoor use and last for several years.

• Elegance: Although it is sturdy and reliable, powder-coated aluminum is also aesthetically pleasing. The variety of possible colors and stylish shapes make powder-coated aluminum products attractive as furniture or decorations.

• Corrosion resistance: Like other powder-coated metals, powder-coated aluminum has advantages due to its corrosion resistance. It can isolate moisture and other contaminants to keep the product corrosion-free.

Applications of powder coated white aluminum

• Powder-coated aluminum is not only used in construction. If you look at your household appliances, you will find them. In most cases, it is scratch resistant and can even withstand dents without falling off. This is because they have been powder coated.

• Powder-coated aluminum enables painted construction steel components to resist heat damage, cold damage and even corrosion. You see the old railing or steel bench still showing the original paint is because it is powder-coated.

• Powder-coated aluminum can also be used for metal roofs and curtain walls. In this way, the surface remains new for many year

• Golf carts, lawn chairs, bicycle sheds and most metal outdoor furniture are made of powder-coated aluminum.

• Road and direction signs are also made of powder-coated aluminum. This is why they still stand for years after being erected, with no signs of fading or corrosion. Finished powders will not age or corrode, no matter how much exposure they face.

• Office metal cabinets, office chairs and desk components are all made of powder-coated aluminum. This ensures that they remain attractive for as long as possible.