Polymethyl Methacrylate (PMMA) is a synthetic polymer commonly known as acrylic or acrylic glass. It is a transparent thermoplastic that is often used as a lightweight and shatter-resistant alternative to glass. PMMA is widely utilized in various applications, including signage, displays, and automotive parts, due to its clarity and durability. PMMA is produced through the polymerization of methyl methacrylate, a liquid monomer. This process creates a solid material that can be easily molded and shaped. Additionally, PMMA can be found in products like lenses, optical devices, and medical implants, making it a versatile material in both industrial and consumer markets.