A corrugated plastic material most often used for "yard" signs. 10 mil coroplast is the thick coroplast used for large coroplast signs because it is more rigid. 4 mil is the standard thickness commonly used for yard signs. Every politician's sign you've ever seen in someone's front yard is made of 4 mil coroplast. Lexan Lexan polycarbonate is one of the most widely known "plastics". Lexan sheet with its unique combination of high impact strength, flame retardancy, and thermoformability makes it ideally suited for security applications. No other plastic can match Lexan's combination of light transmittance (clarity), and the ability to withstand extreme impact. Source: http://www.polymerplastics.com/transparents_lexan.shtml.
Plasticized cardboard that works great for homebuilt recumbent fairings.
Corrugated sheet of plastic similar in structure to cardboard.
Corrugated plastic, as in "Caution Wet Floor" signs. Not lightweight, but indestructible.
a cheap corrugated plastic material very easy to work with and very popular with recumbent builders
A polypropylene sheet or board created by joining a corrugated piece between two flat faces. Similar in appearance to corrugated cardboard. Corrugated plastic is inexpensive, lightweight, and will not fade or break down in outdoor use over short periods of time.
See Corrugated Plastic Sheet on our Materials Reference Chart.
Corrugated plastic, often used for home-built fairings and tailboxes.
Coroplast is a brand name of corrugated plastic and a registered trademark of Coroplast, Inc., a member of the Jim Pattison Group of companies. Because of the success of this brand, it has become a genericized trademark and many people in North America today refer to corrugated plastic as "coroplast".