Unfortunately i don't have the tools to unpin a razor, so it would have to wait until the next time i send it out. I dunked it in 90% alcohol jar and worked the hinge while in the jar, that removed a lot of the rust, but no doubt more is left there. I learnt my lesson... i wonder if the silicone sleeves sold by TSS would have helper though.
Thing is, once water get there, how can you dry it 100%?