BIO 130 is a Biocompatible Eco Plaster, pre-packaged powder for interior and exterior use, compliant with standard UNI EN 998-1. BIO 130 is totally free of cement or compounds belonging to the clinker group. It consists of a mixture of pure silicate calcareous sands, screened with continuous grain size arc from 0 to 1.6 mm. The only binder present is SAINT-ASTIER Pure Natural Hydraulic Lime NHL5 according to standard UNI EN 459-1. The lime NHL 5, white, is produced by baking siliceous limestones at temperatures below 1250°C and reduced in powder by calcium oxide only, without the addition of pozzolanic materials or hydraulic binders of any type.