Painting plastic injection molded parts is common, but perhaps not for the reasons you may think. Today, resin compounders provide numerous colors and effects allowing plastic products to be made with a molded-in color. This allows for a one-step process when molding a part and can be the most cost-effective option.
Sometimes painting after the injection molding process is the better solution when requirements cannot be met with just a custom colored resin. This is due to several factors that include appearance, UV protection and improved functionality.