Before you start painting any of the surfaces, you must prepare it according to all the rules. Plaster, gypsum or concrete surfaces must first of all be cleaned of dust, then, to remove irregularities and other defects, they are passed over the surface with sandpaper or special pumice. If there are cracks on the surface, they are deepened by several millimeters and then moistened with water and covered with putty or plaster mortar. The surface that has been treated is thus leveled with a special float.
New wood surfaces are freed from dust and dirt, then all knots and corks are removed, and resin is also cleaned.
Eliminate traffic jams by cutting three or five centimeters.
Any cracks or crevices are cut. Such a procedure is necessary, otherwise the knots, when the tree dries out, may act as some kind of tubercles.
The surface that was painted with oil paints must first be inspected and only then begin some preparatory work.
Before preparatory work, you need to pay attention to the safety of the paint and what material this surface is made of.
If the old coating holds well, then it only needs to be washed with a 2% baking soda solution. There may be places where the oil paint has moved away a little, in this case it is best to completely remove it.
When the old paint is cracked, wrinkled and cannot be removed, in such cases a special remover is used to remove the old coating . Such a wash is kept from thirty minutes to two hours, over time, the paint becomes softer and it will not be difficult to remove it using such a painting tool as a spatula.
To remove the old coating, use the same blowtorch, a special hairdryer, or an iron, the surface of which is covered with foil .
It so happens that a thick layer of the old paint remains on the surface of the wood, in this case the surface is washed with a 2% solution of soda.
Next, the washed surface is cleaned with a pumice stone, which is mixed with water.
Inspect the surface and if there are cracks, peeling and other similar defects on it, then the previous coating in damaged places must be removed to the wooden base .
The places cleared of the old coating are treated with linseed oil (it must be clean), then putty and primed.
Metal parts, which are or will be finished with the facade, must be cleaned of rust and paint, which may no longer have a proper appearance.
To perform this work, you must use a spatula, scraper, wire brush and sandpaper.
Also, all surfaces that undergo painting must be well cleaned of plaster, dust, dirt and other similar contaminants.
All surfaces that will subsequently be painted with enamel or water-based paints must be prepared, as in painting, with oil paint.
Water-based paint is suitable for painting surfaces that were previously painted with oil paint or other paints.
But before painting it is necessary to prepare the surface that you will paint, as noted earlier, it is necessary to remove peeling paint, etc.
Before painting with emulsion paints of Finnish and Swedish manufacturers, freshly planed wood is cleaned of resin. To clean the surface of the wood from resin, it is necessary to wipe it twice with an eight or ten percent solution of soda ash. This solution should be at a temperature of fifty or sixty degrees, after you have wiped the surface with soda, it must be wiped with a cloth soaked in warm water.
If the surfaces were previously painted with lime , then they are well inspected and if there are nabels, they are cleaned. To do this, nabel is well moistened with water, which should have a temperature of fifty to seventy degrees.
Then the layer of lime is removed with a spatula and washed well with water.
The surface that was previously painted with glue paint must not be painted again with this paint, as the new layer will peel off with the old layer. Previous adhesive paint should be cleaned dry, but hot water can also be used to remove old paint (use a wide brush for this). Then the adhesive paint is easily removed with a spatula or scraper.
The surface painted with casein or silicate paints is cleaned with two or three percent hydrochloric acid solution.
The acid softens the paint and is removed with a scraper or spatula.
It is considered the main procedure for painting works.
Surface priming is necessary so that the pores on the surface are clogged.
The primer also provides good adhesion of the main paint layer to the surface. Surface priming is performed once, but there are cases when priming is performed in several layers.
The primer is always applied only to the surface that has been previously prepared. Use a brush to prime the surface. To apply the next coat of primer, the previous coat must be dry.
The surface, which will later be painted with oil or enamel paint, is primed with linseed oil.You can add a certain amount of paint to the drying oil, which you are going to paint the surface with.
Due to this, places that are poorly primed or not primed at all will be visible.
Before painting with lime paint, apply the primer to a damp surface. This will ensure good adhesion of the paint. There is a suitable primer for any paint, this must always be taken into account.
When painting, the next step, after priming, is greasing.
With the help of grease, they remove all sorts of flaws on the surface, which will be painted in the future.
It is applied with a spatula. Then, when the grease is dry, the excess is cleaned and primed. The lubricant must be suitable for the applied paint.
The next work will be leveling the surface and for this use a putty mixture.
The putty is also selected in accordance with the paint used.
Putty should be applied in a thin layer with a spatula on the surface, which will need to be painted later. Next, the putty is cleaned, but after it is completely dry. And again primed.
Usually paint a clean and dry surface to apply paint using a brush or spray or paintbrush.
To apply the next coat of paint, you must wait until the previous coat has dried. When painting the surface with a brush, keep it perpendicular.
This tool should lightly touch the tip of the surface to be painted. The surface is painted with a thin layer. Vertical surfaces are painted from top to bottom.
Wooden parts or products are painted along the grain. Also, the surface is painted in one two layers, and if necessary, the paint is applied in several layers.
Painted surfaces are sometimes varnished and oil paints are used for this. Such surfaces can be coated with oil varnish, due to which the surface acquires shine and durability.
Before starting paintwork, the varnish must be heated and then mixed.
Warm varnish is applied with a brush to a dry, oil-painted surface. The varnish is applied in a thin layer.
To paint the window frame, the glass must be sealed with adhesive tape or paper before painting the frames. This must be done so that the glass is not splashed with paint when painting the frame.
For the frames to dry well after painting, the windows are left open.
When painting doors, paint is applied to a horizontal plane and then to a vertical one. We hope this article was helpful to you. Good luck in your endeavors!
( 1 grade, average 3 of 5 )
Posted By: Work Style |08, Nov 2020
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