a friend of mine but borax on a rattlesnake hide i caught and put it on a board. it looks a little "dried up" and i was wondering if there was an oil or something i could put on it to give it a wetter look and loosen it up or better yet can i tan it? i'm new to taxidermy and am currently using krotann and have some dp. can i tan after the borax? it has been on a board for about 6months.