I use Mothers Carnauba Wax its great stuff but very expensive, but lasts a long time

Matt's on the right stuff, I've have been using this for years without drama. I actually enjoy putting in that little bit of elbow grease to get is soft - a few rubs and it softens and is really easy to then spread, and months later still providing good protection in home use environment. I reckon I've only bought two tins over the years, still on my second. Cheap in the scheme off things.