HydraCure S16 is a single-use, wet-curing blanket that ensures optimal hydration and an even appearance. The inorganic fibers wick water evenly across the slab to provide continuous moisture for a gradual and controlled curing environment without sticking to the surface. The rayon and polyester fibers will not rot or mildew during storage or leave behind chemicals or membranes. The rolls, at 67 pounds for 3500 square feet, are half the weight of organic curing products. PNA Construction Technologies, 800-542-0214, www.pna-inc.com .