Chavant NSP Modeling Clay Sulphur-Free Plasteline

Chavant NSP Modeling Clay Sulphur-Free Plasteline

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Chavant NSP Modelling Clay is Sulphur Free meaning it can be used in silicone molds without affecting or reacting to the rubber. NSP is great to sculpt with and does not dry out, meaning you don't have to cover or protect your sculptures. It holds detail really well and hardens when dried out after heating to melt down.

You can use Chavant NSP clay sculptures out on displays without having to cast them first! A great versatile clay used by Fine-Art sculptors as well as Special Effects Makeup Artists

Can be melted down and re-used time and time again so no wastage!


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Chavant NSP Modelling Clay - Non-Drying. Sulphur-free Plasteline. 2 lbs - 906g

Instructions for use:
Cut clay into small pieces.
Place in a box with foil to keep heat in.
Heat clay to soften, using heating lamp.
Use pieces of clay to build your sculpture.
Use sculpting tools to sculpt your design.
Refine using Isopropyl Alcohol, using a brush or rubbing gently with a cloth.
The clay is re-usable and can be melted down to use time & time again.

NSP is a sulfur-free, somewhat tougher, waxier, sculpting Plasteline, that is used widely in Fine Arts and Special Effects Makeup.
Can be melted and poured at approximately 185º F. (85º C)

Note: Replacing sulfur minimizes difficulties associated with mold making when using silicone rubber. Always pre-test rubber systems and consider Sealers and Release Agents.

Chavant NSP Modelling Clay can be used for Fine Art Sculpting. It is also known as Plasteline and is suitable for all educational levels. NSP Chavant is also used by professional sculptors in the Fine Art, Special Effects and Product Design industries.
Chavant NSP Modelling Clay meet requirements for detail retention and surface development.


  • Sulfur Free

  • Perfect for Professional and Amateur Sculptors Alike

  • "Grabby" Surface Texture


Blocks are each individually wrapped.
Seal your sculpture before molding - spraying crystal clear is recommended.

More info: 
NSP was introduced in 1993. The intention was to eliminate the sulphur filler in a professional grade sculpting clay. Which often caused inhibition problems with various silicones & liquid rubber mold-making materials. The NSP product line consists of clay that contains higher percentage of wax components making the clay somewhat "tuffer" and more durable.
Available in Soft, Medium or Hard consistencies, these clays have good adhesive qualities, flexibility and strength. Because they are "tuffer" NSP tends to accept cut detail lines very cleanly, with no ragged and jaggered edges. The surface texture of NSP will be somewhat "grabby" when compared to sulphur-based clays and even the NSP. Soft is rather firm by some people's standards.

NSP is commonly used by artists for sculpture and is often used to fill cracks in industrial patterns or to build dams when making splash molds.
NSP Chavant Modelling Clay is subject to surface oxidation. If the clay is in its original package it will have a long shelf life, months and probably years. If the clay is repeatedly heated and cooled, the oxidation process is accelerated. Sometimes this characteristic is beneficial in handling or mold making since the surface becomes harder. Oxidation is rarely an issue.

Handling Tips:
NSP can be warmed to soften but as it softens it also becomes sticky. Using small amounts of water, citrus-based solvents, lighter fluid, latex paint removers, turpentine or mineral spirits as a lubricant on the surface of the clay will help to attain a smooth surface.