If you spray paint on the surface of plastic products, you can ensure the brightness of the product. Plastic products are difficult to reflect. Therefore, the plastic parts look darker, and if the skin texture on the surface of the plastic parts is added, it will be even darker. So some customers will spray a layer of paint on the surface of the plastic parts in pursuit of the beauty of the surface. This ensures the brightness of the product.
Spraying paint on the surface of plastic products, also can reduce the scrap rate of plastic products. The scrap rate of white plastic products has always been a headache for the injection molding industry. If the surface is painted, it will cover up the shortcomings of the product and reduce the scrap rate of the product.
Therefore, it is very useful to paint the surface of plastic parts that are required. But spray painting adds another process to injection molding. Costs will go up.