The interior ground coatings consist of clays, of sands, often it is added vegetable fibres and sometimes of cellulose. They do not require any chemical conversion, nor cooking with manufacture what in fact an ecological and healthy solution for your interior completions.
Once applied, the ground has particular properties. It is permeable with the water vapor, clay absorbs and returns moisture thus controlling the hygroscopy of the part. It attenuates this way the impression of moistness by absorbing the excess of moisture which it will return later when the air is too dry.
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