Dry modelling clay, often referred to as air dry clay, is a versatile material that hardens without baking, simply by being exposed to air. It's popular for sculpting, crafting, and various art projects.
Getting Started with Dry Modelling Clay
Using dry modelling clay involves preparation, sculpting, and allowing the finished piece to dry properly.
Here are the general steps and tips:
1. Preparing the Clay
- Conditioning: Before sculpting, take the clay out of its packaging and knead it thoroughly. This makes it softer, more pliable, and helps remove any air bubbles, preventing cracks later.
- Work Surface: Work on a smooth, non-porous surface like a plastic mat, ceramic tile, or wax paper to prevent the clay from sticking.
2. Building Structure and Armature
For larger or more complex sculptures, building an internal support structure, or armature, is crucial. This provides stability and reduces the amount of clay needed.
- Using Tinfoil: You can use the tinfoil to bulk out your shapes. This helps create the basic form of your sculpture using a lightweight, less expensive material before applying the clay.
- Using Wire: If using armature wire, twisting it can help the clay adhere better. I like to twist my armature wire so the clay has a better grip.
3. Sculpting and Shaping
Once you have your prepared clay and potentially an armature, you can begin sculpting.
- Adding Clay: Apply small pieces of clay to your armature or build up solid shapes gradually. Press the clay firmly to ensure good adhesion.
- Shaping: Use your hands and simple tools like spatulas, loops, or even household items (toothpicks, spoons) to shape, carve, and refine your sculpture.
- Joining Pieces: Score the surfaces of two pieces of clay where you want to join them, add a little water (slip), and press them together firmly to create a strong bond.
4. Smoothing and Finishing
- Smoothing: Use your fingers, damp sponges, or sculpting tools to smooth the surface of the clay as you work. A little water can help achieve a very smooth finish.
- Detailing: Add textures or fine details using various tools or impressed objects.
5. Drying
Dry modelling clay hardens through evaporation.
- Air Drying: Place your finished sculpture in a well-ventilated area, away from direct heat or sunlight, which can cause rapid drying and cracking.
- Drying Time: Drying time varies greatly depending on the thickness of the sculpture, humidity, and temperature. It can take anywhere from 24 hours to several days. Thicker parts will take longer to dry completely.
- Even Drying: Turn the sculpture occasionally to ensure even drying on all sides.
6. Painting and Sealing (Optional)
Once completely dry and hard, your sculpture can be decorated.
- Painting: Air dry clay can be painted with acrylics, tempera, or other types of paint.
- Sealing: Apply a sealant or varnish to protect the paint and the sculpture from moisture and wear.
By following these steps, including using materials like tinfoil and twisted armature wire for structure as needed, you can effectively use dry modelling clay to create durable sculptures and craft items.
