Brake Caliper Pistons

[fazersharp]

I suppose if red grease will protect just as well then best to be safe, I just get the impression that red grease is not as robust in staying where you put it as copper grease would be as it is made for assembly, just thinking rubber grease is sort of transulant/ watery  - not quite and dosent seem like it would stand up to the weather.

And if other grease is a no no with rubber - how come you pack rubber gatered joints on your car with non red rubber grease