MR-10 Lexan will not break like acrylic.
Made from .188" thick hard coated MR-10, this is probably the last windshield you will ever buy for your Ace. It features our "Fast Straps" so you can easily remove the windshield in seconds without any tools. Simply unhook the rubber straps. Rubber straps will not scratch your cage.
Lexan Margard Cut Sheet (from manufacturer's website)
This Lexan Margard sheet has maximum toughness, with mar resistance approaching that of glass, and significantly improved resistance to weathering. MR-10 sheet provides extended service life. It has excellent clarity and durability, it is lightweight, and is superior glazing material for institutions, office buildings, stores, and more. It will withstand -40deg F to 270 deg F. and has a silicone hard-coat surface. It is non-formable and UV resistant. LEXAN MR10 sheet is mar- and graffiti-resistant. It combines the impact strength of LEXAN polycarbonate sheet with a proprietary abrasion and UV-resistant MARGARD II surface.