A coating (topcoat) is a mixture of substances that can be ironed onto different products. Coatings are applied to metal, wood, glass, plastic, paper, etc. A coating consists of the following components: pigment, solvent, binder. To improve properties, admixtures can also be added. A coating is used to improve the properties of the material. Some examples are: an anti-static coating on polyester films, a coating that makes the coated material conductive and a coating that makes the material impermeable to oil and grease.