Ames'® Blue Max® is a special blend of adhesive, high strength elastomeric liquid rubber. It is a new, impenetrable, rubber technology for waterproofing in extreme wet situations such as below grade foundations, basement walls, and cisterns. It is high in solids and dries to a tough 800% elastic membrane that resists cracking and peeling. Blue Max remains flexible from -30° to 150°F. Ames' Blue Max is impervious to water when applied in a uniform and seamless fashion with adequate millage. It flows into cracks and crevices as a liquid and sets up as a durable rubber to seal leaks wherever they occur.