Differences and distinctions between sprayed aluminum profiles

by AluBrovie July 08, 2019

Differences and distinctions between sprayed aluminum profiles

Many people, including aluminum profile distributors and the majority of door and window consumers, can only see whether the surface of the aluminum profile is fluorocarbon sprayed aluminum profile or ordinary sprayed aluminum profile. However, the processing cost of fluorocarbon spray is much higher than the ordinary spray price.

Electrostatic spraying is mainly divided into powder spraying and fluorocarbon spraying.

1. The raw materials of ordinary sprayed aluminum profiles and fluorocarbon sprayed aluminum profiles are different.

The powder coating materials are: polyurethane, polyurethane resin, epoxy resin, hydroxy polyester resin and epoxy/polyester resin, which can be formulated in a variety of colors. The fluorocarbon spray coating is a coating made of polyvinylidene fluoride resin nCH2CF2 baking (CH2CF2)n (PVDF) or a metal aluminum powder as a coloring material.

The chemical structure of the fluorocarbon binder is combined by a fluorine/carbon bond. This structure with short bond properties is considered to be the most stable and strong bond in combination with hydrogen ions, and the chemical structure is stable and strong so that the physical properties of the fluorocarbon coating are different from those of the general coating.

2. Common spray aluminum profiles and fluorocarbon sprayed aluminum profiles have their own characteristics.

The main features of powder coating are: manual spraying equipment, automatic hanging type, simple construction, coating thickness of 30 microns or more, impact resistance, abrasion resistance, corrosion resistance, weather resistance, etc., coating price is higher than fluorine Carbon is cheap. The fluorocarbon sprayed aluminum has strong wear resistance and impact resistance in terms of mechanical properties, and has excellent performance, especially in harsh weather and environment, showing long-term anti-fade and anti-UV properties.

American research institutes have tested and tested fluorocarbon coatings and super-coatings and general coatings. The coated samples were placed in the hot sun of Florida, USA, and exposed to the harsh environment of humid salty air for 12 years. It proves that the stability and durability of fluorocarbon coatings are 30 and 80% higher than the other two coatings, and fluorocarbon coatings are guaranteed to be used in a variety of harsh environments.

3, powder coating contrast fluorocarbon spray aluminum profiles have one of the most significant weaknesses.

The biggest weakness of powder coating is that it is afraid of the sun's ultraviolet radiation. Long-term exposure will cause natural fading. The color difference between the sunny and non-positive sides of the aluminum plate is obvious after a few years. Generally, the color difference is obvious in 2-5 years. Nowadays, the name of the market is called colored aluminum profiles, which are used for aluminum doors and windows, which are sprayed with ordinary aluminum profiles. Increases the variety of aluminum doors and windows, and also enhances corrosion resistance.

So how do we distinguish between ordinary sprayed aluminum profiles and fluorocarbon sprays?

The surface of high-quality fluorocarbon paint is smooth and non-reflective, and the electrostatic powder coating is bright and the surface is very thick.

Fluorocarbon-coated aluminum profiles have quickly become the new darling of the aluminum alloy door and window market due to their excellent and stable characteristics. They are mainly used in large-scale building curtain walls, airplanes, ships, and high-rise residential doors and windows.