A key feature of Foam Clay is its flexibility and its solubility in water. While it hardens after drying, it retains enough elasticity to prevent cracking. This makes it ideal for large projects that must be carried or dressed. It can also be smoothed easily with water, ensuring seamless connections between parts for a professional finish.

Foam Clay works well with silicone molds, allowing creators to reproduce detailed textures or designs quickly. For molds with very thick pieces of material, it is recommended to freeze the mold with the material, thus facilitating its removal. Commonly, it’s paired with EVA foam and ThermoArt thermoplastic to enhance larger projects, adhering easily to surfaces and filling gaps effectively.

Once fully dried, Foam Clay can be painted with acrylic paints, but a primer is recommended for better adhesion. Flexible paints are preferred if the project will undergo frequent bending to avoid cracks in the paint. For thicker designs, freezing may be required to fully harden the material. Overall, Foam Clay’s moldability, flexibility, and ease of use make it a top choice for hobbyists and cosplayers looking for detailed, lightweight, and durable creations.