Burlene has the strength and water-distribution features of 10 oz. burlap combined with the moisture-retention and reflective features of 4 mil white opaque poly, extruded into burlap. This revolutionary method of curing concrete is designed specifically for the curing of concrete slabs, such as bridge decks, highways, buildings, airport runways, military installations, etc. Product is reusable. Stocked in 10’ & 20’ wide x 100’ rolls.