Trident Breakwall Water Repellent & Salt Blocker Invisible Penetrating Sealer is a penetrating, breathable silane/siloxane blend, water based, low VOC sealer that protects horizontal and vertical surfaces from water penetration and chloride salt damage from the use of de-icers or exposure to salt air. Breakwall has the consistency of water and is milky white in appearance when applied and dries clear with an invisible finish. Some surfaces may darken slightly. Breakwall is not hazardous and exceeds all VOC and EPA standards. It can be used indoors and outdoors on both new and old surfaces. It can be applied immediately, as its unmatched breathability will not trap efflorescence. On new concrete, Breakwall should be applied once concrete is fully cured (30 days after installation). Breakwall requires two coats. Cured sealer is freeze resistant to -60°F (-51°C) and is stable up to a temperature of 180°F (82°C).