Clear polycarbonate impact-resistant rods and discs are over 200 times stronger than glass. Also known as PC, these rods and discs offer a continuous use temperature range of up to 265°F (129°C). With an excellent balance of engineering and electrical properties in addition to impact strength, polycarbonate is considered a high-performance material. It offers great stability and a broad operating temperature range. Rods and discs are commonly used for windows or windshields and other see-through applications.