… with a basis of plaster (of calcined gypsum or calcium sulphate). …
Explanatory notes
… with a basis of plaster (of calcined gypsum or calcium sulphate). (A) Modelling pastes . These are plastic … slightly greasy to the touch. Others are mixtures of cellulose pulp and kaolin with binders. These pastes are usually coloured and are presented in bulk or in cakes, sticks, plates, etc. Assorted …