Originally Posted by Kestas

Is this generically known as silicone grease? We often call it dielectric grease.

I got good advice from the BOBISTHEOILGUY web site where one guy says to butter all the caliper bore and piston surfaces with this grease to preclude corrosion. It won't wash out, nor interact with the elastomers or brake fluid. I just tried it on new wheel cylinders I replaced on another car. We'll see how the field trials go.