Coating technology involves applying a layer of material onto a surface to enhance its properties. This can include improving durability, corrosion resistance, or aesthetic appeal. Common materials used in coatings include paints, varnishes, and polymers, which can be applied through various methods such as spraying, dipping, or brushing. This technology is widely used in industries like automotive, aerospace, and electronics. For example, automotive coatings protect vehicles from environmental damage while providing a glossy finish. Additionally, biomedical coatings can be used to improve the performance of medical devices by reducing friction or preventing bacterial growth.