Aluminum plate generally refers to aluminum alloy plate. Aluminum alloy plate is light and firm, with metallic luster and smooth surface. When painting, it is inevitable that some painting is not strong enough. The following measures can be taken:

1 first of all, when buying paint, you should communicate with the merchants and buy paint with strong adhesion;

2. Use fine sandpaper to polish the painted parts, not big, which will scratch the surface and affect the appearance;

3. If the sanding effect is not obvious, you can apply a thin layer of putty and then spray paint. When daubing putty, daub it evenly. It is recommended to invite professionals to operate.