Lexan is a brand name for polycarbonate resin thermoplastic, which is a solid substance that can deform in extreme heat and whose molecules are comprised of repeating subunits. It is a member of a family of thermoplastics that can undergo significant deformation without cracking or breaking. Lexan is known for its superior impact resistance and is often used in situations that call for more durable versions of “glass-like” surfaces. It is used in a wide range of applications, including racecar windows and windshields, reusable drinking bottles, computers and phone cases, visors for sports helmets, bulletproof “glass,” and DVDs, CDs, and Blu-ray discs. Polycarbonate plastic, often branded as Lexan, is an amorphous thermoplastic known for being virtually unbreakable. It is 250 times stronger than glass and significantly lighter. Polycarbonate is preferred for protection or security applications, or if the application requires exposure to high heat. Its strength and durability make it a lightweight safety feature in many applications.