The modern, plastic finishes are only several decades old. Before that, as indicated, linseed oil was one option and not a great one. Finish stayed tacky, never dried completely, but did fill the wood pores and resist moisture entering. Tung oil was an imported, nut from Southeast Asia got squeezed if I recall correctly and I may not, and it did dry a bit better and resist moisture a bit better but it cost more... As said, driers (chemicals) can be added... IN the lumber yard world of today, the plastic finishes are going to be PUSHED, 'cause they are a bit stouter at resisting what finishes are supposed to resist. And the "oil" finishes are going to be saved for the "old style" products kept around INSIDE to enjoy. Real wood furniture, etc. So you have to make a "call." Your $$$. Do you want an old style finish? A more modern "old style" finish like Tru oil? Or the multi layered plastic finish? The old style takes some work to rub in. Today's plastics can be sprayed on in a coat or three. luck.