Mosaics were among the 'core collection' of Sio. They are produced throughout the existence of the factory. The forms were dyed with the Sioliet technique in bright transparent colours.
During the colouring large and small wooden parts from different products rotated in large drums along with paint. The smaller parts are necessary to colour the larger. After the Sioliet colouring the parts were sorted back into the baskets for further processing.