The most common types of PC materials are general-purpose grades, reinforced grades, and optical grades. General-purpose PC is a versatile product that can be used in many applications where high strength and clarity are required. Reinforced PC has added strength due to the incorporation of glass or carbon fibers. This type of PC material is often used in automotive parts, aerospace, and building materials. Optical PC is highly transparent and scratch-resistant, making it ideal for eyeglasses, displays, and lighting applications.