By Dan Antony – Updated March 24, 2022

What Is Lexan?

Lexan is a high‑strength polycarbonate thermoplastic, not a true glass. Its excellent transparency, heat resistance, and ease of forming make it a popular substitute for glass in many applications.

Common Forms

Lexan is sold as solid sheets, ultra‑thin films, and in resin form for molding and extrusion.

Key Properties

• Heat tolerance: withstands boiling temperatures and remains stable down to –40 °C, ideal for kitchenware and electrical housings.
• Impact resistance: far superior to glass, making it standard for safety glazing and automotive or aeronautical components.
• Optical clarity: transmits light at levels comparable to ordinary glass.

Amorphous Solid

Unlike crystalline solids such as metals or ice, Lexan is amorphous—its molecules lack a long‑range order. This structural property gives it glass‑like behavior while retaining polymer flexibility.

Manufacturer & Distribution

Lexan is produced by SABIC Innovative Plastics, headquartered in Pittsfield, Massachusetts. Authorized distributors include Piedmont Plastics and other regional suppliers.

Historical Development

In 1953, engineers at General Electric and Bayer Company independently developed the material. Due to overlapping patent claims, the companies cross‑licensed production, setting the stage for Lexan’s widespread adoption.

Lexan’s versatility continues to drive its use across industries, from kitchenware to aerospace safety glazing.