Duragloss Tire & Rubber Dressing contains a blend of durable synthetic polymers that give tires a "new look". Duragloss TMD forms a polymeric coating on the surface of rubber that will not wash off when it rains. Lasting tire protection starts with polymers, which are both water resistant and long-lasting. Duragloss Tire & Rubber Dressing forms a durable polymer coating over rubber that deepens its color and protects it from drying out. Since water and other contaminants cannot penetrate the protective dressing, tires look clean and black longer. The finish created by Duragloss Tire & Rubber Dressing is a subtle sheen.