Self-hardening clay is air-drying, no-firing clay, whereas polymer clay requires oven-firing. No-bake clay is particularly suitable for decorating, simple modeling and working with children. Polymer clay is perfect for jewelry, miniatures and DIY figurines.
If you love modeling and creative hobbies, you've probably heard of self-hardening clay and polymer clay. These two materials can be used to bring jewelry, figurines and decorative objects to life.
These days, we're hearing about self-hardening clay everywhere. But what's the difference with classic polymer clay? We'll tell you which one to use for your projects!
Here's a full comparison to help you make the right choice between polymer clay and self-hardening clay.
Self-hardening clay, also known as no-bake clay, self-hardening clay or no-bake clay, is a ready-to-use paste. It dries in the air, at room temperature, without firing in an oven.
It is often composed of clay, cellulose or stone powder.
Advantages :
Disadvantages :
Polymer clay ( Fimo, Cernit, Sculpey...) is a plastic modeling clay that hardens when baked (generally at 110-130°C).
It comes in a wide range of colors and finishes (pearlescent, translucent, metallic effect...).
Advantages :
Disadvantages:
| Details: | Self-hardening clay | Polymer clay |
| Hardening | Open air, no firing | On baking (generally between 110° and 130°C) |
| Drying time | 12 to 48 hours | 15 to 30 minutes in oven |
| Resistance | Good | Very good |
| Flexibility | Very easy | More technical |
| Recommended use | Decoration / Simple modeling / With children | Jewelry / Miniatures / Figurines |
| Finish | Paint, acrylic varnish | Varnish or polish |
| Prices | Generally less expensive | Slightly more expensive |
| Brand | Fimo Air, Smarta, WePam, etc. | Cernit, Fimo, Sculpey, etc. |
For children or beginners: chooseself-hardening clay. Easy to handle and no-fire, it's perfect for discovering modeling in complete safety. If you prefer polymer clay, choose Fimo Kids, which is softer and easier for children to model.
For jewelry and miniature creators: opt for polymer clay, which is stronger and more precise. It produces fine, colorful and long-lasting creations. You'll be able to create shell pendants, flower earrings or a heishi necklace.
For decorative objects or textured sculptures:no-fire clay gives an artisanal finish, ideal for one-off pieces to be painted or given a patina. For a trendy, useful and simple DIY if you're just starting out, consider modeling small soothing stones. Or try your hand at coasters to decorate a table, or an abstract sculpture to dress up a piece of furniture!
Now all you have to do is roll up your sleeves and let your creativity flow!
Self-hardening clay dries naturally in the open air. Polymer clay, on the other hand, must be baked to harden.
No, self-hardening clay and polymer clay have different compositions. They should not be mixed, as they will not react in the same way to drying or baking.
Yes, that's one of the great advantages of polymer clay. You can mix shades to create personalized nuances or highly aesthetic effects.
Jewelry and polymer clay objects can be cleaned with a soft, dry cloth. Avoid solvents and abrasive products that could dull varnish or colors.
Yes, it's possible with acrylic paint. For best adhesion, lightly sand the surface before painting, then protect with a gloss or matte varnish.
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