a sprayable composition and a method of protecting material with the composition is disclosed . the composition comprises a bulking / setting material , a water soluble polymer and water to provide a cover layer which , after spraying , is tough , flexible and water - repellent . other materials such as clay , fibrous material , a foam producing agent and a hardening retarder can be included in the composition . the composition is effective as a cover layer over material such as soil , refuse at a dump site , stockpiled material , a temporary cover for remediation sites , or tire piles .