Hi, i usually go not for an inhibitor but a rust converter that oxides the rust and you can both remove it and just paint over the deep pitting. I use an ordinary matt black household gunk for this. And if the unchromed part is deep in the well, instead of a rim tape - which CAN also trap more moisture, I try to apply a layer of GOOD sticky duct tape. Ever noticed guys how all duct tape is NOT created equal??? :-P
Phylo