Self-hardening clay VS polymer clay: which to choose?

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.

What is 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 :

• No firing required: air-drying.
• Ideal for children and beginners.
• Easy to sand and paint once dry.
• Natural, ceramic-like appearance.

Disadvantages :

• Less resistant to water and impact.
• Risk of cracks if drying too quickly.
• Does not allow for extreme detailing.

What is polymer clay?

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 :

• Very solid once fired.
• Ideal for jewelry and miniatures.
• Vivid, long-lasting colors.
• Can be polished, varnished or combined with other materials.

Disadvantages:

• Requires a domestic kiln and firing.
• A little more technical to handle.

Comparison table: self-hardening clay vs. polymer clay

Which clay to choose for your project?

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!

Our tips for use

• Store your clay in airtight tins to avoid drying out.
• Lightly sand self-hardening clay before painting to ensure a smooth surface.
• Follow the correct firing times and temperatures for polymer clay to avoid softening.
• Protect your creations with a suitable varnish for greater durability.

Now all you have to do is roll up your sleeves and let your creativity flow!