i remember when i was young, my uncle used to heat up a coffee can of paraffin until it had liquefied, then dropped a chain into it, let it soak, then pulled it back out.
once it dried it was hard and stiff like a rock, but if you worked it, it was sealed and permanently dry waxed better than just about any over the counter product could do.
my uncle is also in jail for receiving and selling stolen property.