Operating temperature -20°C to +1100 degrees Celsius. Effective as grease at a constant temperature of +150°C, intermittent temperatures of +230°C, and as an anti-seize at temperatures of up to +800°c. Silverhook Copper Spray Grease is a specially formulated anti-seize metallic compound, blended with extreme pressure lubricants designed to withstand both high and low temperatures. It has excellent lubricating qualities, and lengthens the life of nuts, bolts, screws, shackle pins, wheel and exhaust manifold studs. This product is ideal for use on boiler components, steam vessel, kilns and incinerators. Copper Grease will reduce friction wear, prevent seizure, corrosion and pitting. It contains no silicones and is safe on most plastics and metals. It will not dry, harden or erode, even under extreme conditions including ice, snow and salt water.