Tough and durable, polycarbonate is usually associated with applications that require high impact or repeated use. Significantly stronger than plate glass and acrylic, polycarbonate sheet is lightweight, and is an economical glazing material that provides increased protection against high traffic use, vandalism and theft. Polycarbonate is more dimensionally stable than acrylic over a wide temperature range. And, compared to acrylic, it is only slightly less transparent. Because its surface is often compared to acrylic, polycarbonate sheet is more prone to scratching.