Removing Unintended Patina

[redsquid2]

Been working with A2. I was forming a kydex sheath, and, being careless, I allowed a combination of moisture and heat to form this unintended patina:



The one in this picture is hand sanded to 400. I could wrap some 400 sandpaper around a Mars eraser, and carefully sand the patina off. I think I have done that in the past. I have already tried isopropyl alcohol and acetone, with zero results.

Any other ideas?

If all else fails, I have a mind to stick it in a freshly baked potatoe and patina the whole thing.

 

[redsquid2]

...and while I am here, I'll just show y'all the whole knife, because I really like it. It's my first time doing peened pins, and I also used pre-textured G10 from Jantz. Looks tougher than a honey badger.



View attachment 613043

View attachment 613044

 

[logem]

Just go back to hand sanding at 400 grit to remove the corrosion. It may take a while depending upon how deep it is.

Use extreme caution since it's sharp now, or dull the blade, then hand sand and resharpen.

 

[Nic.]

I have done the same with leather. Sand sand sand....

 

[Robert Erickson]

If it's not too deep, patina comes off with Flitz paste pretty easily. If it's deep then it's back to sanding.

 

[Bill DeShivs]

It's rust. You're going to have to sand it off.

 

[Matt Rochester]

This is where a full flat grind comes in handy because the plunge gives you a stop for sanding. With your grind only coming up 1/3 of the height it will be tricky keeping the little j hooks out. Take your time. Nice looking knife though!

 

[redsquid2]

Thanks for all the feedback. I sanded it, and the results are better than what I expected. Not perfect, but pretty nice.