HAGA Lehmfeinputz H521 from HAGA AG Naturbaustoffe is a purely mineral clay finishing plaster for interior walls in new and existing buildings. It is produced from clay powder and clay with white limestone sands, limestone flour, natural earth and mineral pigments, retarders, and biological additives. The plaster is vapour-permeable and moisture-regulating and is classified A1 non-combustible.
Its clay composition enables it to absorb and release moisture, helping to moderate indoor humidity. H521 carries ecobau’s eco1 rating, meaning it is classed as ‘very suitable’ for Minergie-ECO and first priority under ecoBKP/ecoDevis. Ecobau’s current assessment records no environmentally or health-relevant ingredients, biocides, heavy-metal emissions, or relevant formaldehyde emissions, and confirms that the product meets its recycling criterion.
