I have had complete success using this 4-step process in an ultrasound cleaner:
1. Odorless mineral spirits
2. Denatured alcohol
3. Odorless mineral spirits
4. Paint thinner
I don't know that every step is required, but it does work on my KMC 10-speed chains. Just need to toss them in the wax crock pot and good to go.
scott s.
.