DLC and TiCN chemical proof?

[SBaker34]

Does anyone know if dlc and TiCN coatings are completely chemical proof? Disregarding anything that would also easily eat the metal beneath it. Or will certain solvents have some effect?

 

[NJBillK]

AFAIK dlc can be weakened by soaking in hydrogen peroxide. But to be honest, that was just a bit I read on here in another thread.

It seemed to work a bit on my zt0770cfm4 dlc, but it had to soak for over 45 mins. to see some bubbles and over an hour and a half to weaken it for an impromptu backwash that still required 15 mins of 600 grit sic under running water.
The water was only running so I could keep an eye on my progress.

 

[TravisH]

Not 'completely'.

Obviously, chemical strippers can remove anything ... eventually. It's dependent on exposure time.

I wouldn't think wiping down a blade with a solvent to remove something like oil or tar and then cleaned would be an issue.