Surface preparation for painting.

For decoration apply adhesives, aqueous dispersion and oil paints. Most paints can be purchased in stores in the finished form or as semi-finished, some can prepare themselves, such as distemper (of water, chalk, pigments, dyes and adhesives). Repairs begin with the processing of previously painted surfaces. Before coating the adhesive paint plaster surfaces need to be primed. Primers distempers are soap-boiling (soap-boiler), vitriol "aluminous. When selecting the composition of the primer should be aware that some pigments change color under the influence of vitriol (copper sulfate), so if there is such pigments in the paint should be applied primer soap-boiler or aluminous. Recipes soap primer: a) lime - 2 kg soap - 200 g, water - 10 l, b) lime putty fat - 3 kg soap - 300 g, linseed oil - 100 g, water 10 liters. First dissolve the soap in 2 liters of boiling water. This solution was poured varnish. Then in 8 liters of water dissolved lime and pour cooked soap-oil solution. To obtain alum soil take 200 grams of alum, 200 g of soap, 200 g of dry wood glue, 30 g of linseed oil and 2 kg of sifted chalk in one dish was dissolved in 3 liters of boiling water alum, in another - as in 3 liters of boiling water - glue, add soap and varnish. Then pour in the alum solution, add water, chalk and fall asleep all mixed together. Priming compositions applied primaries tassels. When the primer surface should not drive a brush in one direction, and the length and breadth. If after drying the soil are dark streaks or spots, they must be primed again. Next time primed surface should be no later than 24 hours to soil does not perestoyalsya. After drying primer to remove small defects produce of bedding. Formulation of bedding: linseed oil - 2Q-25%, 50-60% of shallow, carpenter's glue (10% solution) - 20-25%. In order to eliminate cracks or shells used Filling - drawing on the surface of one or more layers of fillings with intermediate drying and sanding between coats. If you can not buy ready-made fillings, cook it yourself. To produce 1 kg of filler taken (in grams): water - 300, linseed oil - 5, animal glue - 25 desiccant - 10, household soap - 3, chalk - until the desired consistency. Surface under the whitewash shpatlyuyut special solution (mixed in equal parts gypsum and chalk, and shut the mixture of 5% aqueous solution of a bone or hide glue). At another whitewash ceilings, walls, heating stoves, covered with dust, soot, they should pre-wash strong solution of caustic soda in water, or dark spots then be visible through the whitewash. After that dried the surface must be covered with a thin layer of lime mixed with dilute alum in hot water (1 liter of water 30-50 g alum). When this layer is dry you are ready to whitewash.