The 3C field encompasses a wide variety of consumer products such as computers and mobile phones, each with varying requirements for acrylic paints and resins. Currently, laptops and mobile phones typically use a single-component acrylic paint as a primer, while the topcoat has evolved from traditional two-component polyurethane to the now commonly used UV-cured topcoat. As a primer, it needs to dry quickly and have good adhesion to the substrate, while the topcoat requires high hardness, flexibility, good gloss, and fullness.