Lexan is a brand name for a type of polycarbonate plastic known for its strength and durability. It is lightweight yet resistant to impact, making it an ideal material for various applications, including safety glasses, automotive parts, and protective shields. This versatile plastic is also transparent, allowing it to be used as a glass substitute in many situations. Additionally, Lexan can withstand extreme temperatures and is often used in construction and electronics, providing both safety and insulation in various products.