More and more in construction and interior decorationsuch material as plasterboard is used. Its installation does not require special skills and is a good way to hide uneven walls and ceilings. Most often, the final stage of repair is its painting. But before starting this stage of finishing work, the plasterboard is prepared for painting.
The surface to be painted must be smooth and free ofchips, only in this case the paint will perfectly lie on the plasterboard. If everything is done correctly, the paint will lie well on the walls (ceiling) and the entire interior will look attractive.
Preparatory work
To ensure that the surface being painted is perfect,it is necessary to eliminate all irregularities. Sealing the seams and places where the plasterboard sheets are attached, eliminating its defects that could have arisen as a result of installation - all this is part of a set of measures aimed at preparing the sheets for painting. To process the plasterboard, you will need the following tools and materials:
Tools for processing and painting plasterboard.
- glasses;
- respirator;
- gloves;
- stairs;
- spatula (different sizes);
- grinding grater;
- brush;
- plastic mesh for reinforcement;
- sandpaper;
- wipe mixture.
Before you start working, sheetsplasterboard and their joints must be well primed. The primer is a good base that will give the surface increased adhesion of 2 dissimilar materials and protect the walls (ceiling) from moisture. It is recommended to use a ready-made primer that does not require the addition of a solvent. The work surface is thoroughly cleaned of dust and the primer is applied evenly over the entire area using a roller. Hard-to-reach places and joints are treated with a brush. After drying, you can proceed to the next stage. Return to the table of contents</a>Plasterboard Puttying ProcessPuttying begins with sealing the connecting joints. An important rule to follow at this stage is the thickness of the layer of building mixture. It should be as thin as possible. But since it is not always possible to maintain the minimum thickness due to possible "deep" defects, it is recommended to apply the putty in several layers. In this case, you need to wait until the previous layer is completely dry.
Scheme of plasterboard joint filling.A reinforcing mesh tape is applied to the joints and a leveling mixture is applied on top using a spatula. The tape will add rigidity to the joints and prevent them from cracking. Next, the places where the sheets are attached are checked. All screws should be slightly recessed into the plasterboard. This can be checked by running a spatula or other similar object (a construction ruler) over their locations. To prevent corrosion of the screw metal and further rust from appearing on the painted surface, the fasteners are also sealed with a thin layer of putty. It is recommended to use a special finishing or super-finishing putty. Return to contents</a>The grinding process After the walls andthe ceiling is completely dry, proceed to sanding. This stage will give the surface an ideal smoothness, which is very important for painting. It is necessary to wear a respirator and glasses to protect the respiratory system and eyes from dust. It is better to do sanding in the dark with an artificial light source. The lamp is installed so that it is close to the surface being treated, and its light falls from the side. Sandpaper is put on the sanding grater. Its grain size will depend on the protruding layer of putty being treated. For rough grouting, to remove a large layer, use sandpaper with a nominal size of 80, for final sanding, paper with a size of 180 is needed. Sanding is carried out with uniform circular or spiral movements. The light from the lamp will allow you to see which layer has already been removed. The wall surface will be smooth when the shadow cast by the unevenness (protrusions) of the putty layer disappears. The final stage of preparing the walls and ceiling for painting is applying another layer of primer. If the wall has a patterned structure and its painting involves combining different colors, then at the intersections it is necessary to use special paper adhesive tape. It will allow you not to spoil the work done earlier. It is not recommended to use scotch tape because it can stick well. When peeling off the tape from the painted wall, it can stick to itself and remove part of the paint of the putty layer or paint. It is recommended to paint drywall with a special water-based emulsion, to which the desired coloring pigment is added.
