Roof X Tender 450 Premium Fibered Aluminum Roof Coating is a professional grade, aluminum reflective coating. Roof X Tender 460 is a 3 lbs. professional grade coating designed to provide the brightest and longest lasting finish. The high content of aluminum in this product enables it to form a brilliant silver shield to reflect the sun’s destructive rays. Cooling costs can be significantly reduced while the underlying roofing materials are protected and preserved. Roof X Tender 460 serves as a great rust inhibitor and will aid in the prevention of corrosion for metal surfaces. Roof X Tender 460 is also non-fibered providing for increased coverage.