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1. Recycled materials are more soluble in organic solvents than new materials, resulting in silver wire cracking often occurring after engraving. The general solution is as follows:
First, the choice of acrylic pigments (resins), this can be bought in the general art store.
Second, the choice of amino paint, this can be bought in general chemical stores.
Third, after the paint is applied, the polishing process is carried out.
2. For some slight scratches or less obvious damage treatment on the acrylic surface, sandpaper is usually used for wet grinding. When sanding, the sandpaper should be moved in a circular motion. The fineness of the sandpaper should be gradually increased to more than 600 mesh. Finally, the toothpaste can be used for rubbing. .
3. When the board is static, it is easy to adhere to dust. Before silk screen or paint, wipe it with a soft cloth dampened with 1% soapy water to achieve a clean effect.