Interestingly I done some experiments with paraffin wax in a crock pot and then put a rotisserie with an old driver on it over the crock pot and let the chain run through the wax while it's hot.
Just putting the chain in the crock pot works pretty well, all the outside stuff comes off and some of the stuff inside comes off.
Once I put the rotisserie and let the chain roll through the hot wax, you'd be VERY surprised at how much dirty stuff comes out before you wax it the first time. Then after the first time, how much dirty wax comes out of the chain. Make sure the chain is high enough that the chain doesn't rub the bottom of the pan, because the dirt will settle to the bottom of the hot wax. All the clean wax will stay up towards the top. Then you can scrape the dirty wax off and throw it away.
Let it roll 30 minutes or until I remember to grab it and hang it above and let it drip dry, then break it all loose and put it back on. Even letting the chain drip after it's nice and hot there will still be some wax that slings off when it's hot onto the floor pan, but it comes off fairly easy with a pressure washer.
I know some have raised concerns when I was originally testing this about the chain loosening up a bit once the wax inside the rollers gets tension or gets hot. I personally never had a problem with this because I ran the Chain Draggone system, so if it loosened up any it self adjusted for the most part. But, if I didn't run that, I'd just start the kart on the stand before practice and it should loosen up enough then adjust it, then it will be fine.
I had a spray wax that if I ran 2 day shows I'd spray a little on. But, I liked the rotisserie because it essentially cleaned and lubed it all in one step.