This 4mm fluted polypropylene sheet is also known as correx, corplast, coroplast or simply yard signs.
School spirit signs
This economical, lightweight sheet is the foamcore of outdoor signage. Corex is most commonly used for yard signs. Add grommets and it is perfect for fence signs or stadium signs. It’s also widely used for economical indoor hanging signs. Corex can be scored and folded to create easels, but for complex shapes, corrugated cardboard is a better choice. 10mm corex is also available upon request. Maximum printing area = 99” x 49”.