CastileneSculpt with ease using Castilene, the sulfur free modeling compound that combines the malleability of clay with the durability of wax. Lightweight and compatible with various rubbers, it comes in soft, medium and hard grades for detailed and sharp work respectively. Hard Castilene will remain malleable while working if kept warm. All three hardness are compatible with one another. Hard Castilene can be used as an armature and soft or medium Castilene