Hi all! Still working on the bathroom reno. I have copper stub-outs with sweat-on brass 1/2 in female threaded adapters at the end. I have stainless steel 1/2 in male threaded external shower valve adapters (Grohe) that need to get screwed into the brass. Any special kind of pipe dope I should be using for this situation - stainless to brass? The threaded portion of these adapters will eventually be covered by tile. If you need pictures, I will get some for you.

Thanks!