You don't want antisieze compound, you want anticorrosion or
antioxidation paste; the same stuff you use for aluminum wire. You
can get it at any electrical shop.

I saw the type that you mentioned when I asked for anti-seize compound
in the maintenance department in where I work yesterday. It is
designed specifically for electronical compounds. But its label warns
against using it near food. I don't think I will use it near drinking
water.

Thanks anyway.

Jay Chan