What materials did hundertwasser use in painting 30 day fax?

In "30 Day Fax," Friedensreich Hundertwasser used a combination of traditional and unconventional materials, including acrylic paints, watercolors, and often incorporated elements like sand or other textures to enhance the visual depth of his work. His unique approach emphasized vibrant colors and organic forms, reflecting his philosophy of harmony between nature and art. Hundertwasser's use of diverse materials contributed to the tactile quality and dynamic appearance characteristic of his style.