The Transguard 4000 reusable wet-curing blankets are made from a naturally colored polypropylene fabric that allows for proper moisture control. The blankets feature exceptionally low permeability and retain water. They are lightweight and flexible, making them easy to handle. They seal easily, won't deteriorate or stain the concrete, and even allow light traffic during the curing process. Reef Industries. 800-231-6074.