Corrugated plastic is sometimes referred to by its brand name Coroplast or Core. Corrugated plastic material is made from an extremely versatile extruded twin wall polypropylene sheet. Signs are often mounted on wire stakes that slide into the signs fluted area between the flat front and back surfaces, but can also be affixed with velcro and double-sided tape or hung, when grommets are punched through the material.
Coroplast sheets of material are able to be cut to any size (4’x8’ or smaller) and can also be customized and cut to shapes (arrow, circular, oval, etc). Signs may be single faced or double faced.