My apologies, it would be paraffin/rosin dipping. My understanding is that once it is dipped it is dipped because the paraffin and rosin actually soak into the wood. Michael Bush has a cool write up on it. I just know that as an individual it is not a very feasible way to protect your hives due to expense, but with what I have read and the people I have spoke with it is the best way to protect your wooden ware investment and the bees like it..
http://www.bushfarms.com/beesdipping.htm