DAS ready to Use Modeling Clay - 500g White £3.99 Out of stock. A moist ready-to-use modelling clay, air dries to a hard, durable matt finish without the need for firing. Das dries to a tougher and smoother finish than standard air drying clay and is soft and pliable. Poster paint and acrylic paints can be used once the clay is dry. Suitable for children.