Reinforced plastics are composite materials made by combining a plastic matrix with reinforcing agents, such as fibers or particles. These reinforcements, often made from materials like glass or carbon, enhance the strength, stiffness, and durability of the plastic, making it suitable for various applications. Commonly used in industries like automotive, aerospace, and construction, reinforced plastics offer advantages such as lightweight properties and resistance to corrosion. They can be molded into complex shapes, allowing for innovative designs while maintaining structural integrity, making them a popular choice for modern engineering solutions.