[Evans, Marv]

I've used a product called "Corosion Block" with success on magnesuim in the past - in a spray can. The only other thing on the list I've used is Boeshield T-9. I don't consider it a serious rust inhibitor, but I use it on almost everything and always have a can of it handy. I put it on the surfaces of things like table & band saw, use it for a decent penetrant with lubricating properties for locks, faucets, miscellaneous automotive stuff, etc. I've had a can of that stuff on hand for probably thirty+ years. There is about no end of things I'll spray it on.