I've been using grease and NoAlox, respectively, for steel-steel and steel-aluminum/alloy fit-ups to prevent seizing/galling, but I recently bought a bottle of Loctite C5-A to try out for this purpose. It's a greasy suspension of colloidal copper and is advertized as good for all sorts of metal interfaces (steel, stainless steel, aluminum, brass, copper, titanium, etc.). Anyone else tried this stuff? Reading the spec sheet, it seems like the ultimate stuff...even good for temps over 1000 degrees....