'Quadreme' demonstrates the importance of colour in Scott's sculpture in the mid-1960s. He commented: 'Colour became for me, a crucial issue in about 1964-5... During that time I felt it was one aspect of sculpture that was paramount to its development, that it meant more than the coating of something with a surface skin and should consequently be thought about deeply'. Instead of painting his sculptures, therefore, Scott used self-coloured fibreglass and acrylic sheet. He added: 'I myself used colour as an expressive force in the work by careful variegation of its qualities (i.e. tone, texture, intensity, etc) in relation to the physical ones of shape. I hoped to make colour play a part expressively'.