Lexan is a brand name for a very tough, transparent plastic called polycarbonate , originally developed by General Electric in the 1950s and now owned by SABIC.

Quick Scoop: What Is Lexan?

  • Lexan is a polycarbonate resin thermoplastic designed to replace glass when strength and impact resistance are more important than low cost.
  • Chemically, it’s a polycarbonate polymer made by reacting bisphenol A (BPA) with phosgene, giving it high toughness and heat resistance.
  • It’s typically sold as clear or tinted sheets in various thicknesses (roughly 0.75 mm to 12 mm) and can be bent, machined, and thermoformed.

In plain terms: Lexan is the “super glass” plastic—clear like glass, but far harder to break.

Key Properties (Why People Use It)

  • Extremely high impact strength (often quoted as around 250× stronger than glass and much stronger than acrylic).
  • Can be made bullet‑resistant in the right thickness and construction.
  • Good heat resistance for a plastic; it softens at around 147 °C (about 297 °F).
  • Lightweight compared to glass while maintaining clarity.
  • Can be drilled, cut, and formed without shattering like glass or more brittle plastics.

Downsides

  • Scratches more easily than glass unless it has a special hard coating.
  • Can yellow or degrade with long‑term UV exposure without UV‑protective layers.
  • More expensive than standard glass or basic acrylic sheets.

Where You’ll See Lexan in Real Life

Lexan shows up wherever safety and toughness matter more than perfect scratch resistance.

  • Building & architecture: Safety glazing, skylights, domes, protective window panels, bank/security partitions.
  • Industrial: Machine guards, viewing windows on equipment, site glass in piping, shields and visors.
  • Aerospace & automotive: Aircraft canopies and windscreens, train and vehicle windows, instrument cluster covers, light covers.
  • Consumer electronics: Laptop and tablet shells, phone cases, CDs and DVDs, some screens and device covers.
  • Everyday items: Water bottles, food containers, flashlight lenses, headlamps, window well covers.

Small Example

  • A clear safety shield on a factory machine that must not shatter if hit by debris is often made from Lexan sheet rather than glass, so it bends and absorbs impact instead of breaking.

Is “Lexan” Just Polycarbonate?

  • “Lexan” started as GE’s trademark brand for its polycarbonate material; today the brand is owned by SABIC.
  • Technically, Lexan is one brand of polycarbonate—other companies sell similar polycarbonate under different names (like Makrolon).
  • In practice, many people casually say “Lexan” when they mean any clear polycarbonate sheet, even if it’s not that specific brand.
TL;DR: Lexan is a branded polycarbonate plastic that’s clear like glass but extremely tough, used anywhere you need impact‑resistant, safety‑focused “glass‑like” panels and parts.[5][1][3]
Information gathered from public forums or data available on the internet and portrayed here.