When the 2024 aluminum plate is silver plated and painted, there may be black spots on the outside. Next, the 2024 aluminum plate manufacturers will introduce the reasons for the black spots on the outside of the 2024 aluminum plate when silver plated and painted.

May be in the spray, the mouth out of the seal requirements are not strict, so there are some other organic compounds and inclusions in the spray spray on the surface of the 2024 aluminum plate.Forming dark spots on the exterior.Sulfur gases can also cause black spots on the 2024 aluminum plate.

In the skills of 2024 aluminum plate plating, it is possible that some changes have taken place in the production management link of an enterprise through electroplating, and then the defect occurs.The most common reason for the discoloration of silver-plated parts is the influence of sulfur on the silver-plated layer.After silver plating, 2024 aluminum plate parts are not packaged in time and kept in monochrome vessels, and black spots appear after contact with sulfur elements.

In terms of painting skills, the main reason is that the gap is not blocked, so that the paint mist enters, and is attached to the silver plating layer 2024 aluminum plate appearance and cannot be removed.To avoid such problems, it is recommended to use 3M tape to directly seal the gap during processing and production to avoid paint mist.When the 2024 aluminum plate is silver plated, in order to avoid the influence of sulfur elements, the 2024 aluminum plate should be sealed and retained in time after the silver plating of the parts, and then placed in a dry environment.

The above is the reason for the black spots on the surface of the 2024 aluminum plate when silver plating and spray painting. If you need to consult the price of the 2024 aluminum plate, please contact us.