How can you tell if black dlc blades are corroding?

[Cave_Hermit]

After church I'll try and take pictures that show the pits from the rust on my para 3.

G’day mate any pics of the para 3? Cheers.

[Sjucaveman]

Here is the best I can do with my phone.

[abbazaba]

Good video comparing coatings, with DLC corrosion test results at the 6 min mark: https://youtu.be/s6cKjbDToXU

[Cave_Hermit]

Here is the best I can do with my phone.

Thanks for the pic I’ve never seen pitting on dlc stainless what were you cutting with it to do that?

[Cave_Hermit]

Good video comparing coatings, with DLC corrosion test results at the 6 min mark: https://youtu.be/s6cKjbDToXU

Very informative video thanks mate.

[Sjucaveman]

Here is the best I can do with my phone.

Thanks for the pic I’ve never seen pitting on dlc stainless what were you cutting with it to do that?

Costco hot dogs from the food court. I wiped the blade dry afterwards then it sat for a while before I carried it again.

[Sharp Guy]

Thanks for the pic I’ve never seen pitting on dlc stainless what were you cutting with it to do that?

Costco hot dogs from the food court. I wiped the blade dry afterwards then it sat for a while before I carried it again.

That explains everything! Those things would make plastic rust. :)

[Cave_Hermit]

Here is the best I can do with my phone.

Thanks for the pic I’ve never seen pitting on dlc stainless what were you cutting with it to do that?

Costco hot dogs from the food court. I wiped the blade dry afterwards then it sat for a while before I carried it again.

That’s crazy the grease actually pitted it.

[Cave_Hermit]

It won't. I am incredibly tough on the corrosion resistance of things and I EDC'done for years. Carried it on an 800 mile bike tour too. Rusted the stop pin, lock and liner real bad, but the blade was pristine. The DLC Para 2 is the knife that made me fall in love with DLC for its amazing corrosion resistance.

It might sound weird, but smelling the folder is a good way to detect internal rust. My Police 3 looked fine from the outside, but the inside was coated in rust. Liners on both sides, pivot, lock bar, etc. Found out by the smell. It was so strong I could tell from arms length away.
If nothing else you can always open it up and check. I try to avoid doing that any more than I need because it can be easy to strip screws.

I just read your pilgrimage thread pretty cool stuff, and amazing the para didn’t rust after all that time. Mine just went fishing got hit with some sea spray all day it’s shiny and clean no signs of rust.