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The Yosima is a clay mortar for plaster made of a mixture of sand, coloured clay and pure clay, perlite (a volcanic glass), cellulose fibers. It also contains a small percentage of methylcellulose (less than 0.5 %). Its grain size is up to 1 mm, meaning the appearance is quite smooth. After drying the ingredients get ground up and mixed together. The result is a series of striking colours and surfaces which can be used as moisture buffering for indoor climates. Its application is on interior walls and ceiling finish. It is particularly suitable for hospitality spaces such as homes, hotels and restaurants. It is available in 140 colour shades and seven structural loadings, making over a thousand combinations possible.
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