NSP Sulfur-free Plasteline Modelling Clay
Chavant NSP 900g medium.
Chavant Clay is a professional, sulphur free sculpting clay.
Green in Colour
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.