I use hot wax on my bottoms... It works so much better than any of the brush on waxes.
I have an electric frying pan, i turn it up to 250, never higher. Then I put I half a pound of paraffin wax, and about 2 tblsp. Of baby oil, it softens the wax slightly. I then set the pots into the hot wax, take it out immediately and set it on newspaper for a few minutes. That's it, it is 100% resistant to just about anything. It also has the benefit of a nice straight line if you dip carefully.
I do this in a well ventilated room, and get everything ready to go before I turn on the wax. Th