Correx boards are made out of corrugated polypropylene, often called a fluted plastic board. This material will make for dependable signage because of its rigidity, and colorfast, waterproof and weatherproof Houses. Make sure you Be aware that Correx® protection items are going to be delivered folded when obtained in quantities https://www.indigosupplies.com/blogs/news/protect-floors-and-surfaces-with-correx%C2%AE-temporary-floor-protection