Sofadher is a product of adhesion and a porosity regulator that is used on inappropriate media such as fiber cement, tile sheets, plaster, painted interior surfaces, chipboard... before the application of whitewash.
Sofadher is a film paint and does not apply on a support that has had covers.
Attention : it is possible that variations of hues on a wall that has had rework (filling, different materials on the same wall) appear after the application of your whitewash.
