BOSS Products brings you nickel and copper anti-seize compounds for protecting your metal components from rust, seizing and corrosion.503: Nickel Anti-Seize Compound, 505: Copper Anti-Seize Compound, Temp Range: -65F to 2600F (Nickel), Temp Range: -65F to 1800F (Copper), Available in 4oz, 8oz or 16oz brush top can.