Rusty Knives

[live bait]

I keep two Dexter carbon steel fillet knives, in a holder on the transom of the boat, when done being used I wipe them down with a clean rag & fresh water, give them a spray with good old WD40 & back in the holder they go, they can't help getting sprayed with the raw water wash down. My knives almost always show rust spots, what does everyone do to keep carbon steel knives rust free?

 

[BoatGuy]

Your care seems excellent. The only thing that comes to mind is that the leather sheath is wet. Try storing them outside the sheath and see if that helps. Put the back after your sure the leather is dry, or you need to go fishing.

 

[OVERBORED]

They can't help getting rusty. As long as the sharpened edge is sharp and shiny you're good to go.