Depends what the finish is to begin with- oil, lacquer, or varnish. Each demands a different approach to preservative. Generally speaking though, Ren Wax is good across the board. A long time friend/neighbor here has worked at the Smithsonian over in D.C. as a conservator for nigh onto 30 years and he swears by the stuff. But really, as far as I'm concerned, any good paste wax is good for firearms.
Last edited by gnoahhh; 04/24/21.
