A coat of paint is a combination of a SMOCK, LAYER, and reyal. A SMOCK is a loose-fitting garment that covers the body from the neck to the knees, often with long sleeves. A LAYER is a thin sheet or coating of material, such as paint, applied to a surface. Reyal is a type of paint that is made from a mixture of oil and pigment, and is used to protect and decorate surfaces. Together, these three components form a coat of paint, which is used to protect and decorate surfaces.