Personally, I wouldn't use copper grease on my AP Calipers. Any environment between two dissimilar metals and some electrolyte (water) is setting the conditions for corrosion. Looking at the corrosion on my calipers behind the wear plates, its occuring in the region where the stainless plate meets the aluminium alloy caliper. My calipers are away for powder coating at the moment, and then I'm rebuilding them with complete new rebuild kit, inc pistons.
I'll be using Tef Gel on the backs of the wear plates and screws. And brake pad grease for the backs of the pads and the sliding faces. Aluminium HT anti-seize compound would be better.
I'll be using Tef Gel on the backs of the wear plates and screws. And brake pad grease for the backs of the pads and the sliding faces. Aluminium HT anti-seize compound would be better.