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Thread: Flash rust
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03-31-2010, 12:29 AM #1
Flash rust
I was honing a razor just a little while ago that I had hand-sanded to a decent shine. My son stopped by to borrow a book so I was interrupted for maybe 5 minutes--- yeah I forgot to wipe the blade off before I set it down ---- the razor rusted in that 5 minutes! It cleaned up (for the most part) very easily, but I was a little shocked. Does the sanding make the blade more prone to this?
Don't get hung up on hanging hairs.
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03-31-2010, 01:16 AM #2
odd
the only explanation for this i can think of is it was the very fine metal particles sitting on the surface of the blade from honing that actual rusted having a very large surface area the should oxidize very very quickly. thats my thoughts as a scientist anyways maybe someone who knows more about honing than me will have another reason for this
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03-31-2010, 01:18 AM #3
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Thanked: 39Yes
Yes, once all the oils and waxs are removed from carbon steel you can almost watch it rust before your eyes if left wet.
Silver2
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03-31-2010, 01:41 AM #4
I think our water quality fluctuates and could be more acidic at times. Because every time it has happened some baking soda stopped it. It being water stone polishing steel that oxidizes as you watch. And the same piece might not rust next time without using soda.
with a higher polish say 4kjpn I cant recall it happening, but if it is in O and water it is oxidizing
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04-01-2010, 05:50 AM #5
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Thanked: 1936When I was polishing swords, I would use a little baking soda (a big pinch) in my water bowl that I used to sprinkle my stones. I have continued to use this method and have not ever had a razor to "flash rust". It will happen quickly with some water, steel, or a combination of both.
Southeastern Oklahoma/Northeastern Texas helper. Please don't hesitate to contact me.
Thank you and God Bless, Scott
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northpaw (04-01-2010)
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04-01-2010, 09:01 AM #6
If I need to walk away even for 30 seconds I dry the blade. Just a quick wipe.
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04-01-2010, 04:59 PM #7
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Thanked: 24This actually just happened to me. It was only my second razor that i have tried honing. This post makes me feel a little better knowing that it is possible, coz i thought i was going crazy.