Sulphur Free Clays are versatile, non hardening. These formulas are generally easier to make rubber moulds from, will not inhibit the cure of two-part silicones and urethanes, and have less odour.
Chavant Sculptex
Sculptex™ is a non-toxic, non hardening oil-based modeling clay that is sulfur-free and non contaminating. An excellent replacement for Klean Klay.