Stag handle maintenance

This forum is for those who like to repair and restore knives, and for those who would like to learn.
Post Reply
Cabphoto
Silver Tier
Silver Tier
Posts: 65
Joined: Sat Mar 29, 2025 6:32 pm

Stag handle maintenance

Post by Cabphoto »

Hi There-

Does any have any technique to remove green staining from stag knives? Is there a safe way to reverse this or clean it once it has started?
User avatar
Mumbleypeg
Gold Tier
Gold Tier
Posts: 15682
Joined: Fri Apr 18, 2014 1:28 am
Location: Republic of Texas

Re: Stag handle maintenance

Post by Mumbleypeg »

Without pictures it's difficult to say what is causing it but from your description you may have some verdigris. If so it's likely coming from brass in liners, pins, or nickel silver bolsters. Verdigris formation is usually the result of exposure to acids, possibly from proximity to leather, or outgassing celluloid, and chemical reaction between brass (actually the copper in brass) and acids.

It's likely penetrated into the pores in the stag. If so I don’t know of any way to cure that. If it's just on the surface some elbow grease with a soft cotton rag might remove some or all of it.

Maybe someone else has a better recommendation. ::shrug::

Ken
Member AKTI, TSRA, NRA.

If your religion requires that you hate someone, you need a new religion.

When the people fear their government, that is tyranny. When government fears the people, that is freedom.

https://www.akti.org/
Cabphoto
Silver Tier
Silver Tier
Posts: 65
Joined: Sat Mar 29, 2025 6:32 pm

Re: Stag handle maintenance

Post by Cabphoto »

Mumbleypeg

It’s most certainly from the brass liners and pins. It’s a slip joint and no leather exposure.

Just spit balling but because it color on essentially white stag, is there any logic to heavily diluting a bleach or tile cleaner with bleach and gently introducing to the stag in the light colored areas?

Just an idea not going through with it yet.
User avatar
Bill DeShivs
Silver Tier
Silver Tier
Posts: 925
Joined: Sun Oct 07, 2012 4:57 am
Contact:

Re: Stag handle maintenance

Post by Bill DeShivs »

It might work. Let us know.
Bill DeShivs, Master Cutler

Factory authorized repair for:
Latama
Mauro Mario
LePre
Colonial
KABAR
Hubertus, Grafrath, Ritter
Schrade Cut. Co., Geo Schrade, Pressbutton, Flylock
Falcon/AKC/AGA Campolin
Puma
Burrell Cutlery
User avatar
Sharpnshinyknives
Gold Tier
Gold Tier
Posts: 6305
Joined: Mon Jul 16, 2018 2:32 am
Location: Indiana
Contact:

Re: Stag handle maintenance

Post by Sharpnshinyknives »

Cabphoto wrote: Sun Sep 07, 2025 1:23 am Hi There-

Does any have any technique to remove green staining from stag knives? Is there a safe way to reverse this or clean it once it has started?
I’ve had success using mineral oil on stag that has turned green. From the stag that turned green that I have had, it was not near the brass pins, and seems to have been growing independent of the metal. Mostly seen this on Japanese knives made with stag. I did have one that was made in the USA, but mostly Japanese stag handled knives have done this. Hope this helps. Sorry I didn’t see this sooner.
User avatar
Bill DeShivs
Silver Tier
Silver Tier
Posts: 925
Joined: Sun Oct 07, 2012 4:57 am
Contact:

Re: Stag handle maintenance

Post by Bill DeShivs »

If mineral oil removed anything green from your stag, it was green polishing compound.
Mineral oil will penetrate stag, and darken and soften it. It should not be used on stag.
Bill DeShivs, Master Cutler

Factory authorized repair for:
Latama
Mauro Mario
LePre
Colonial
KABAR
Hubertus, Grafrath, Ritter
Schrade Cut. Co., Geo Schrade, Pressbutton, Flylock
Falcon/AKC/AGA Campolin
Puma
Burrell Cutlery
User avatar
Sharpnshinyknives
Gold Tier
Gold Tier
Posts: 6305
Joined: Mon Jul 16, 2018 2:32 am
Location: Indiana
Contact:

Re: Stag handle maintenance

Post by Sharpnshinyknives »

Bill DeShivs wrote: Thu Sep 11, 2025 5:56 am If mineral oil removed anything green from your stag, it was green polishing compound.
Mineral oil will penetrate stag, and darken and soften it. It should not be used on stag.
Thanks Bill, I remembered you saying that before. I only used it because nothing else was working and the stag looked pretty awful. Otherwise I would not use it, per your recommendation.
Post Reply

Return to “Knife Repair and Restoration”