Pulp dropped into clay slip. A ruler simplifies measurement of volume. Thoroughly mixed by hand, stick or mixer blade, the clay now looks like oatmeal porridge. Poured onto a dry surface or plaster slab. Paddled and plastered with a knife or flat stick to any thickness.
Thin edges show the fine fibres.
Poured into a frame or mould the material lends itself to any shaping method. Can dry overnight. Thin and thick can be combined in one slab. Hard dry slabs can be scoured with a sharp knife and snapped over the edge of a table. The cellulose fibres are just visible to the eye.