Lexan is the brand name for polycarbonate sheet and resin in a wide range of grades.
Lexan is a polycarbonate plastic. Fiberglass is exactly that, fibers of glass bound together with a resin.
Polycarbonate
Most riot shields list the material of construction as Lexan, the trade name for the polycarbonate polymer. The young's modulus of polycarbonate is 2.0-2.4 GPa (gigapascals).
You can buy the panels on multiple websites. One site I found is www.eplastics.com Home Lexan Polycarbonate. They seem to have different brands to look through.
The Resistance to Attack by Aviation Phosphate Ester Fluids (of which Skydrol is) with Polycarbonate (Lexan) is listed as "Poor" and Skydrol "Not Recommended."See also the associated links.
Usually it's a thin shell(lexan, polycarbonate etc) and then a polystyrene(or similar) foamed liner to provide cushioning.
Polycarbonate is a tough and versatile plastic used in bulletproof windows, cellphone casings and eyeglasses. Dr. Hermann Schnelle of Bayer in Germany invented the polycarbonate resin in 1953, just a week before Dr. Daniel Fox of General Electronics made the same discovery. Lexan is the brand name of polycarbonate.
Harley windshields are typically made of Lexan which is a hard-coated polycarbonate material. This material is scratch resistant, durable and distortion-resistant.
Lexan, a brand name for polycarbonate, is commonly used in applications requiring impact resistance, such as bulletproof windows, safety glasses, and protective gear. It is also used in electronics, automotive components, and construction materials due to its durability, clarity, and ability to be molded into various shapes.
Polycarbonate is considered one of the strongest types of clear plastic for sheets, known for its high impact resistance and durability. It is often used as a substitute for glass due to its strength and clarity.
In order to make a durable sign, a durable type of plastic must be found. Polycarbonate, or lexan, is a very durable type of plastic that will be able to withstand hurricanes if you choose that option.