Dear Kathy, I have used the various Castaldo silicones, but have had
the best, most consistent results with the Zero D Products Quick Cure
Lime and their very firm 4X Blue. They release waxes better than
anything else I’ve tried. There is a big advantage in getting
technical support from Zero D. You can buy direct and get fresh
material at a good price. Call them at 1-800-382-3229. Craig Miller