Toupret Humi-Stop is an anti-damp treatment and is a specialist water based white coloured coating, suitable for applications to damp but not dripping interior surfaces such as cement, concrete, brick, stone. Specially formulated using fillers and synthetic binders for the treatment of damp interior walls before painting or wallpapering. Can be over coated with any Toupret filler or any standard decorative coating system. Ventilate rooms well to allow drying of the surfaces. Treat the entire wall. Apply two cross coats by brush or roller. Apply the first coat thinned 5% with clean water to satisfy the porosity of bare substrates. Allow to dry and apply the second coat undiluted. Theoretical coverage 3 square meters per litre/per coat. Do not apply if temperatures are below 10°C.