Process and application range of surface protection for aluminium profiles

- May 15, 2019-

The surface protection for aluminium profiles is widely used in the surface protection of aluminum plates, aluminum-plastic composite panels, mirror steel plates, color plates, plexiglass plates, decorative panels, and aluminum profiles, plastic steel profiles, stainless steel coils, marble materials and display screens.

The surface protection for aluminium profiles is based on a specific formulation of polyethylene (PE) film, with polyacrylic acid (resin) resin as the main material of pressure sensitive adhesive, and then coated with several specific adhesives, slitting, It is processed by packaging and other processes. The protective film is soft in nature, good in adhesion, easy to stick and easy to peel off. The pressure sensitive adhesive has good stability and does not have any adverse effect on the surface of the product to be attached.

Surface protection for aluminium profilesapplication range

The surface protection for aluminium profiles is mainly used for surface protection of various plastics and wooden boards (sheets). For example, PVC, PET, PMMA two-color board, foam board UV board, glass and other sheet surface are transported, stored, processed and installed. There is no damage during the process.

Surface protection for aluminium profiles process

1 aluminum surface treatment:

The surface treatment of aluminum profiles, also known as surface pretreatment, is the use of physical and chemical substances to remove the dirt on the surface of the aluminum profile, so that the aluminum profile body is exposed, which facilitates the oxidation treatment of the surface of the aluminum profile later.

2 aluminum profile surface degreasing process:

The purpose of the aluminum profile degreasing process is to remove the industrial lubricating oil and anticorrosive oil on the surface of the aluminum profile and the dirt impurities attached to the surface of the profile, to ensure the alkali corrosion of the aluminum profile is uniform, to ensure the cleaning of the alkali etching groove, and to improve the surface treatment quality of the aluminum profile.

3 aluminum profile etching process:

The surface etching process of the aluminum profile is carried out after the degreasing of the aluminum profile, and the main purpose is to remove the oxide film formed by the oxidation of other metal elements on the surface of the aluminum profile and the natural formation of the oxide film; Washing is carried out, the temperature of the washing is controlled at 50 °C early, to avoid the flow marks on the surface of the profile, and then the running water is washed. Since the aluminum profile contains copper, the surface is dark after the acid rot test, and it needs to be immersed in the nitric acid solution for 3-5 minutes to make the surface bright silver.

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