Primers are specialized chemicals used to enhance the adhesion of coatings, paints, or adhesives to various surfaces. By preparing and modifying the substrate, primers promote stronger and more durable bonds, even on challenging materials like metals, plastics, or glass. They often improve resistance to environmental factors such as moisture, heat, or chemical exposure, ensuring long-lasting performance. Primers are widely used in industries such as construction, automotive, and electronics to optimize surface compatibility and ensure reliable application results.