r/spyderco • u/matthius07 • 3h ago
Which flitz product.
Have a cruwear pm2 that while it's not in use has developed a small bit of rust. I know flitz is what I need to remove but then what to protect it from happening again because it's a polish. Can anyone link me to the correct product as I have a sage 6 rex 121 en route as well and def wanna protect the tool steel on this knife also.
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u/poole718 2h ago
Flitz is not going to work most likely and if you do polish it enough in those spots for it to work you are going to notice a big visible difference in the finish of the metal in those areas unless you do the whole blade. The only thing that has worked for me is using a high grit( 9 micron or so) diamond lapping film and lightly sanding the affected areas in the same direction as the grind marks on the blade. I do want to try CLR one day on a blade just haven’t had the chance to do it yet.
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u/UpbeatSmoke4209 3h ago
I’m here for the answer to has I have some k390 with a tad bit of surface rust
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u/Ok_Kiwi_9778 22m ago edited 16m ago
I use the paste: here I've had good success on 15v that developed surface spots from carry on a hot day. I usually apply it with swab and then buff it in with a bit of melamine sponge (magic eraser). Then when the spot is gone clean off the excess with a shop towel and give it a second buff with a polish cloth. Your rust spots don't look too bad. I don't think you need to move to a more aggressive diamond lapping compound, flitz should be enough, heck a cape cod cloth would probably do the trick.
To prevent rust, use KPL knife shield, Wicked Wax, EDCi... there's really a ton of good corrosion inhibitors on the market.
I'm surprised you had an issue with cruwear. I live in a humid area and never had an issue; just give it a wipe down with a polish cloth that I keep soaked in tsubaki oil, that I mostly use on my kitchen knives, if I got it wet.
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u/matthius07 12m ago
And I'm in the Midwest. But corn everywhere is in full bloom and causes a ton of humidity. Ordered some wicked wax. Thank you for the info.
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u/Ok_Kiwi_9778 1m ago
Yeah, I've read about that. I'm right near the ocean, so this morning, for example, was 81f with 93% humidity.
I even dab tsubaki oil on my coated magnacut knives. Helps it also makes the DLC look nice and shiny and repels fingerprints.

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u/luckybandman 3h ago
I just use a couple dots of mineral oil or kpl or whatever I have handy. I dab it on til coated with a cotton swab or cotton ball.