Lexan and Polycarbonate are the same thing. Lexan is a brand name and Polycarbonate is the chemical Name.

There are three ways to protect your walls from chairs: polycarbonate/lexan chair rails, Rubstrips, and wall guards. Each of these will increase in cost and complexity and we'll walk through each option. Clear Polycarbonate/Lexan Chair Rail See Polycarbonate Chair Rail The least expensive option is a clear chair rail. The benefits of this product is that it's strong and inexpensive. The potential downsides are that you can see through the product so you won't be able to hide previous damage on the wall. Also, these are attached with screws (through predrilled holes) and some people would like to hide fasteners. Rubstrips See Rubstrips Vinyl rubstrips (also called "rub rail" or "crash rail") are thin vinyl strips that come in 4–8" widths. They are...