Alkyds are synthetic resins made by heating polyhydric alcohols with polybasic acids or their anhydrides. They are widely used in the production of paints, varnishes, and coatings due to their excellent adhesion, flexibility, and weather resistance. Alkyds are known for providing a durable, glossy finish that enhances the appearance and longevity of the coated surface. They are particularly valued in industrial applications where robust and long-lasting coatings are essential.