I have an older fixed blade, hunting knife with a stag horn handle that needs to be resealed, as it came out pretty dull looking after it's last scrubbing with soap n water. I am hoping to use something like tung oil, so that it gets pretty well sealed in a naturally appearing way, as opposed to any type of polyurethane, or water-borne clear-coat. I am able to do a clear-coat if that would be the recommendation, however, the horn butts to a thin spacer, then to a brass pommel, which would raise the issue of masking those, and the attending "bump" when un-masked. Thanks!