The Vulkem 350 Membrane, Enduragrip PU wear resistant coating and Vulkem 351 Topcoat system is a tough, resilient, polyurethane elastomer-based layer rubber barrier giving long-life waterproof protection to concrete structures. It is a premium grade elastomer using the latest technology to provide long-life, protective barriers to prestige construction projects. Suitable for protecting parking decks and pedestrian decks from moisture ingress.