The best oil to use is tung oil it dries to a hard finish and a low sheen, it should be mixed 50/50 with mineral turps and left to dry, I have not used the dip prosses yet but intend to, I have been useing a small brush, tung oil is dear so I use boiled linseed wich is next best, it darkens the wood a shade more but dries to a good surface, I use this on chopping boards I make as well and apply 3 or 4 coats with a broad brush, this oil can be picked up at a hardware shop
Jimbo