Coroplast is an inexpensive plastic which is 1/8" thick and is available in sheets up to 4 feet by 8 feet. Coroplast resists cracking and is made form polypropylene.
This is a great solution for signs that need to be very durable and are temporary or need to be made inexpensively. Note That coroplast has "fluting" that is similar to corrugated cardboard.
It is visable and must be vertical if your sign is being used with step stakes, as they are inserted from the bottom edge.
Background Colors Available:
Sky Blue, Blue, Navy Blue, Grey, Light Orange, Dark Orange,
Black, White, Yellow, Ivory, Red, Green and Clear Transparent.