New, unpainted surfaces must be cleaned of dirt, dust, and loose material. Old paint must be removed from surfaces painted previously with lime, by using a brass brush or hot water pressure washing. New plastering should be allowed to dry for at least a week before liming is begun, otherwise the end result may be multicoloured.
Perform plaster patches or replacements with a plaster matching the composition of the old plaster to the level and coarseness of the surrounding surface. If plaster repairs have been done for previously lime painted surfaces, these patch repairs must be lime painted once or twice at least one day before the actual liming is commenced.
The surface to be painted must be moistened with clean water or lime water before painting and 2-3 hours after painting. For prime coat application, a mixture of water and paint is prepared in a ratio of 2:1.
Lime paint must be well mixed before and during use so that the solids of the paint do not descend to the bottom of the paint tin. The painting work is carried out using a lime paint brush, a round brush with the diameter of approximately 170 mm, window jambs and battens can be painted with a wide brush. The number or paint layers depends on the base surface and target
plastering surfaces are painted 3-6 times, bleaching 1-2 times. Painting is performed when the previous paint layer has dried. In practice, one layer or paint, only, is applied per day.
Lime paint is not suitable for cement plastered surfaces. Surfaces that are meant to be unpainted (window glazing, metal surfaces, natural stone surfaces) have to be protected for the duration of the painting work.
The surface to be painted must be clean and hard, the surface to be painted and air temperature has to be at least +5° C, and relative air humidity 50-90%. Painting in rain or in direct sunlight is to be avoided.
Storage and handling of waste
See the separate storage and disposal instructions https://www.fescon.fi/en/material-bank