Marius Fabre Black Soap
Vegetable-based, solvent-free and containing no artificial colorings, Marius Fabre black soap with olive oil is biodegradable and environmentally friendly. It is used in final coats of internal plaster to blend with the alkali lime and further saponify into a water resistant finish useful when doing Tadelakt work in shower areas and other high humidity conditions. Marius Fabre black soap used for finishing Tadelakt has already undergone a saponified transformation. However, since it is rich in fat, when its applied to the still fresh plaster the oils will blend into the water in the Ecologic® Mortar SCG (F) when it is used for plaster as the soap is worked into the surface. As the oils go deeper into the lime a second saponification occurs which results in a gloss and a breathable yet beautiful water resistant finish.