When selecting plastic mirrors, the base material determines durability and clarity. Acrylic (PMMA) is the most common choice due to its 92% light transmittance and superior impact resistance compared to glass. For high-traffic or safety-critical environments, Polycarbonate (PC) is preferred as it is virtually unbreakable, though it is more prone to scratching. Ensure the supplier uses vacuum metalizing technology for the reflective coating to prevent peeling and ensure a vibrant, consistent color finish.