👉 The term "uncoated" is used in the context of materials and processes to describe substances that have not been coated with a protective layer or coating. It can refer to various types of materials, such as metals, plastics, glass, ceramics, or synthetic materials. Uncoated refers to a material without any type of protective coating applied on it. This could include anything from a single piece of metal to a whole assembly of components that are not coated with an adhesive or other means of bonding