Copper grease.

100ml Copper Grease for Assembly of Spark Plugs Exhaust Manifold Turbo COMPRESSORS Electric Contacts

A high quality lubricant based on deeply refined oils and copper powder.
The range of the working temperature from -20ºC to +650ºC.
The lubricant creates a non-caking layer acting even at high temperatures.
Recommended for lubrication of electric contacts of low power and electrical connections.

Copper grease is a lubricant containing a high level of copper to prevent the wear and seizure of connecting screws exposed to very high temperatures. It facilitates the assembly and dismantling of bearings and other fittings and prevents seizing. The product repels humidity and is water and corrosion resistant.

Copper slip also helps prevent pad squeal caused by high frequency vibration of the pads under braking. Just apply a smear of grease onto the back of the pads to stop them squealing, and also onto the sides so they move easily within the callipers.