S30V Chinook II Corrosion

[Ken Cox]

I do not use my Chinook II as an everyday utility knife.
Rather, I have polished the already fantastically sharp edge and I carry it as my self-defense knife; and especially when riding my bike.

When riding my bike, I carry the knife in the small of my back, clipped to my shorts, inside my waistband.
This exposes the knife to a lot of salty sweat.

I have noticed a tiny amount of spotting on the blade, which rubs out with oil and elbow grease and leaves no pit behind.
I wonder, though, what kind of experience others have had with S30V in very corrosive environments, such as body contact and sweat.

Any comments?

 

[OwenM]

I work in a very hot and humid environment, and Thursday night ended a 10 day run during which I worked 18 shifts. Most of the 8 double shifts were doing jobs that other people didn't want, from stacking thousands of 53-58lb. bags, to blowing down the plant's multiple levels from the rafters to the floor.
The blade of my Paramilitary is typically coated with sweat when I pull it from my pocket. I wipe it off with my shirt, and rinse it in tap water when I get home. No corrosion of any kind so far.
Have also owned several S30V knives for over two years. The only time I've gotten any corrosion was cutting grass all day with a roughly finished prototype DDR CF ALB IWB, and letting it sit coated in sweat overnight. The small amount of corrosion that did form wiped off with a rag.
Also did a lemon juice test some time ago, applying the juice to the blades, and letting them sit all day with the result being...nothing.
Also have a S30V Rinaldi TUK that has seen mostly kitchen use, and has cut its share of acidic fruits, etc. with no resulting corrosion, though this is no surprise, as the knife is typically rinsed and wiped soon after use.
I have seen some performance differences with different makers, and manufacturers HTs (mostly small, though I do not think that the production S30V knives I own are as tough, or hold an edge as long, as my DDR and Bos HT'd knives), but corrosion has not been an issue with any of them.

 

[brownie0486]

Ken,
I keep a light coat of clp [ fp10 ] on my blades at all times. I coat the blade then lightly wipe off the excess so it isn't left wet.

Until used for something, the thin coating will last for weeks protecting the blades.

I do the same thing with the 640-1 stainless 357 that rests against my bare skin all day. Sweat sits on the steel all day, when I take the gun off, I simply wipe it off and every few days replenish the clp coating.

Brownie

 

[u812]

I have had a 440V Military to do the same thing but the S30V has not had any pop up at all.