You have a choice of good substrates for T-Paint: Clay Boards, Tierrafino Base, with or without straw, and two kinds of lime plaster and primer. Gypsum plaster also makes a good substrate.
We advise you to read the product sheets of Base and Kalk lime plaster before you start work.
Clay building material have a very old tradition and going back of long time ago.
Clay building material can be easy reused.
Clay building material can be considered as one of the purest builging material.