Due to a leak, my boots and blades got wet, when I left them unused for over a week. The water was clean rainwater, so I'm not worried about infections.
The damage to the boots is mostly on the heels and outsoles - and should sand right off.
But there are also rust spots on the bottom of the blade, mostly inside the hollow. I started to remove them by sharpening. (I also tried vinegar, but it wasn't taking anything off real fast.)
But I don't want to remove more metal than I have to, as these blades (MK Dance) are ridiculously over-priced. If I leave a rust spot that doesn't reach the sides of the blade much (and therefore doesn't affect the edges), will those rust spots spread fast enough that it would be worth it to keep grinding until no rust is left? Assume that in future I will keep them as dry as possible when not in use.
I'm only skating several days a week now, maybe 6 hours/week total. I sharpen my blades carefully, and straighten instead of sharpen when I can, so I only grind off maybe 003" of metal every 60 hours on the ice (slower than most people). If the rust spots are .006-.009" deep, and they don't spread, it would take 2 - 3 more sharpenings to remove the rest of the rust - 20 - 30 weeks from now.
Incidentally, the rust is almost black, unlike the brown on rusted cars. Why? I assume it has something to do with the alloy.