Chavant NSP medium modelling clay
Chavant Clay is a professional, *sulphur free sculpting clay.
*Sulphur can often caused inhibition problems with various liquid silicone rubber mould-making materials.
NSP can be melted (at approximately 85°C) to pour into a mould, for instance, to create as base from which to features can be added.
The clay hardens quickly after pouring and can be sculpted at room temperature.
If you need to smooth an area, you can gently warm it and moisten with water.
Model Ogre by Malcolm Watts - University of Bolton BDes (Hons) Special Effects Development.
The Claw handle project by Sophie MacDonald (University of Bolton) illustrates how you can make a mould from the Chavant master.