A coal tar pitch emulsion sealer for asphalt surfaces requiring high resistance to gasoline, oil, solvents, jet fuels or chemicals, as well as moisture, freezing and oxidation. Effective for airport refueling aprons, parking lots, garages, service stations, driveways and other asphalt paved surfaces subject to solvent or chemical leakage and spillage. Easily applied by brush, roller or airless spray equipment.