Léém Clay Paint is a mineral textured paint (aka "clay wash"), suitable for interior walls and ceilings. It is typically used on already homogenized surfaces such as gypsum, porous stone, clay- or lime-based plasters, bricks, natural or synthetic paints, solid wood, and engineered wood panels. It comes in 4 colors (cream, brown, grey and red), but can be mixed in controlled proportions to obtain new colors. Léém clay paint is available in two sizes: 5kg or 25kg bags.

Covering surface and dilution guideline:

5kg:

One layer : 15m2 - 20m2
Two layers : 7,5m2 - 10m2
4L à 4,5L water

25kg: 

One layer : 75m2 - 100m2
Two layers : 37,5m2 - 50m2
20L à 22,5L water

Technical sheet :

More info here