Coating refers to the application of a layer of material over a surface to enhance its properties, improve its appearance, or provide protection. Coatings can be applied to a wide range of materials, including metals, plastics, wood, ceramics, and textiles. The primary functions of coatings include: 1. **Protection**: Coatings can protect surfaces from environmental factors such as moisture, UV radiation, chemical exposure, corrosion, and wear and tear.
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