French to English Art/Literary Art, Arts & Crafts, Painting Faience/ceramics

In a text about "Terres Mêlées" faience. Context: "Cette pâte d’argile préparée et obtenue sera ensuite travaillée en estampage sur des moules de plâtre en creux ou en bosse". I understand what they are doing with the clay, but is there a good English word for "estampage" in this context, please? Perhaps something like "pressed"? Thanks in advance.