Does Ace have pure tung oil? Any particular brand I would look for would be "pure" tung oil?
I purchased Formby's original low gloss from either Ace or True Value. I can't recall which. Here is the bottle. http://hardware.ucnelson.com/Product_i100488
Then, take that and a bottle of original low gloss Armor All and follow these directions. I know others have done a lot more of these than I have, but that is what makes it so amazing. I achieved amazing results on my first try. I have a new hobby now.
http://www.rimfirecentral.com/forums/showthread.php?t=331108&highlight=woodstocks