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Cernit is a modelling polymer clay that contains PVC and plasticizer. Polymerising happens during baking. The clay hardens.

It is liked for making decorative items such as jewelry (earrings, bracelets, pendants...), figurines, accessories, miniature food or even for customization and restoration of furniture.

Children as well as adults or professional artisans or jewelry makers use this polymer clay.

The large color range allows begins and more experienced users to vary shades without having to mix colors.

Our range holds many different shades and effects : 

  • Cernit Number one : 42 opaque colors, glossy after polishing. Available in 56, 250 or 500g.

  • Cernit Metallic : 17 metallic colors in pieces of 56g.

  • Cernit Translucent : 14 transparent colors and one night glowing color. This range is very popular among the artists due to its amazing transparency. This range is available in 56, 250 and some 500g.

  • Cernit Neon : The most neon of all polymer clays, 4 colors available in 56g !

  • Cernit Nature : 3 colors with a stone and dirt effect thanks to strands in the clay that allows an irregular aspect, similar to the one of a stone. Available in pieces of 56g.

  • Cernit Doll : 7 colors that have a skin-like effect (slightly transparent) and one translucent flesh color. This clay has an aspect very close to flesh, a porcelain-like finish and is totally suitable for creating dolls. Each piece weighs 500g.

  • Cernit Soft Mix : a clay softener that does no change the color of the clay. You can mix up to a third of softener with 2/3rd of polymer clay Cernit. This way, the clay will be easier to work with and softer. The plasticity of the clay is increased.

How to use polymer clay Cernit ?

Once unpacked, the clay has to be kneaded in the palm of the hand before starting modelling so that it goes softer and easier to work with. The clay should be used with clean hands on a clean surface as well to prevent any dirt or dust to get in the clay.

There are as many uses as one could imagine ! Cernit can be molded, sculpted, with or without tools, printed or mixed with stones, pearls, feathers, powders, paints.... 

How to bake polymer clay Cernit ?

The Cernit clay hardens between 110 and 130°C (230-266°F) in a preheated oven. Baking time is of 30 minutes. Temperature should be respected unless harmful gases could develop and the color could be corrupted.

Be careful, this clay cannot be baked in a microwave oven! After baking, the clay is waterproof. Also, it can be baked several times if you wish to add bits to your work.

When you are done baking, the clay can still be worked with. It can be sanded, drilled, varnished according to the finish you like. For polishing, start with sanding gently the clay with a fine-grain sandpaper. Finish with a polisher to get a maximum glossy effect. After some time, if it rubs clothing the clay could loose some of the glossy. Then, it has to be polished again. The result will be the same as with varnish. However, varnish will resist the rubbing and does not need to be applied again. 

As soon as your piece of clay is baked and maybe polished, you can still work on it by adding acrylic paints, oil paints, mica powders or varnish. 

How to store polymer clay Cernit ?

Once the packaging is open, Cernit can be stored in that same package or in a plastic wrap, to the ambient temperature. You can keep it like that up to 3 months. 


Our Cernit does not contain any phthalates. Children should not be left alone while using the clay. This product must not be put in the mouth and we advise to wash hands after each use. 

One should not eat, drink or smoke in an area which is dedicated to modelling Cernit. 

Why should you buy polymer clay Cernit ?

  • After baking and sanding, the creations have a glossy finish

  • Baked Cernit keeps some flexibility, it does not break easily. This is a big asset for some specific work. The clay is resistant though absolutely not crispy. Due to this amazing flexibility, Cernit stands out from the competition. It is your perfect match for creating flowers, bracelets with no clasp or other fine jewelry that needs to keep a certain flexibility.

  • The wide color range allows beginners to have a large choice. For experiences polymerists, the mixable colors make even more colors and effects possible. Primary colors are also available in bigger packaging (500g) to create your own blend of colours.

  • Cernit does not stain hands or tools

  • Even during baking, Cernit is odorless

  • Cernit is very flexible

A Little History

The polymer clay Cernit was born in the sixties, in Prague, in Czech Republic. A couple of scientifics creates this clay that will be named according to the first name of the lady which was called Cerna.

Forced to emigrate in Germany in 1963, they both decide to publish a newspaper ad to find an investor who would help them develop the product.

Soon, Mr. Manfred Guder notice the ad and decides to collaborate with the inventors. When they decide to retire, Mr. Guder hire a chemist in charge of the development of the clay color range. At that time, production takes place in the Frankfurt factory in Germany. 

Over the years, the sales are running out and Cernit is only sold to 2 clients who represent together 50% of the turnover.

From 2000, Mr Guder collaborate with the company Bodson-Nélis, manufacturer of the Darwi air-drying clay. He will be distributing the clays Darwi Classic, Darwi Roc, Darwi Extra-light, to the Cernit brand.

Only 7 years later, Cernit is offered for sale, having as potential buyers Fimo, Sculpey and the belgian company, who had turned into “Darwi”. The next year, Cernit becomes officially Belgian when it is taken over by Darwi. 

Ever since, the Cernit range has been extended with various accessories for modelling, creating jewelry, dolls, flowers, etc. New colors and new developments are still coming... Do not miss them!