Lime-based mineral plaster with improved adhesion for smoothing and filling.
More info:
FR : https://www.galtane.com/fr/accueil/33-55-enduit-de-lissage-a-la-chaux.html#/36-contenance-5kg
NL : https://www.galtane.com/nl/home/33-55-enduit-de-lissage-a-la-chaux.html