Studio Modelling Paste is a ready-to-use paste for creating reliefs and impasto, especially for creating dimensions. It is applied with a painting knife, and may be mixed with colours when moist that will slightly deteriorate it. It retains the imprint of the tool and can be sculpted and painted when dry. After drying, it perfectly retains its volume and does not crack. High Density Modelling Paste lends a thicker and more textured paste than Studio Modelling Paste.