Model Pyro-Paint 634-AL is 2-part, 99% alumina filled, ceramic coating system used to bond, coat and seal refractory fiber boards and other shapes used in molten metal fluid handling components and structures in foundry applications to 3,200°F (1,760°C). Advanced material helps to prevent wear and oxidation of refractory components and increases heat reflectivity to improve thermal efficiency and enable temperatures to ramp up more rapidly. It is resistant to wetting by most molten metals, increasing the durability, erosion resistance and reliability of the underlying structure. Pyro-Paint 634-AL is environmentally friendly, water-based formulation containing no volatile organic compounds. It dries at room temperature in several hours and cures fully within 2 hours at 200°F.