ã€one】
Wood clearing engineering
1. Alkyd varnish
(1) Clean the surface of the wood → sanding the paper → scraping the putty → grinding → painting → repeat above.
(2) Construction process
A: Base treatment before clearing oil: The important process of painting varnish when polishing the base layer should first remove the dust, oil and other impurities on the surface of the wood, and put the nail cap into the wooden 1 mm as required. When sanding the sandpaper, wrap the paper in a short wooden square and grind it. The wire angle is large and it needs to be smoothed and polished, and the surface is cleaned with a damp cloth or cotton wire.
B: Scrape the putty into the nail hole, seam, etc. with a knife or scraper. When scraping, it should be horizontally smeared, scraped, and cleaned. After drying, use sandpaper to gently polish along the wood grain. Wipe cloth or cotton silk.
C: Construction specification for clear oil painting: When brushing clean oil, it should be constructed according to the operation method of first going up and down, first difficulty after, first left and then right, first inside and then outside and horizontal brush.
D: When brushing the first varnish, add a certain amount of thinner to dilute the paint to make the paint film dry quickly.
E: When the operation is done with the wood grain, it is required to apply the paint film evenly, without leaking the brush, and not falling. After the oil is completely dried and hardened, it is sanded with sandpaper. When polishing, it is required to polish all the light on the paint film to increase the adhesion with the paint. Wipe clean with a damp cloth or cotton thread after grinding.
F: After the first varnish is finished, the finish should be finished and repaired. For the obvious unevenness of the paint, it can be repaired with the same oily putty with the same color as the paint surface. If the surface of the wood is frugal, dark spots and large paint When the surface is inconsistent, the oil color of the desired color should be prepared, and the color should be covered to ensure that the decorative surface has no large color difference. When brushing the varnish for the second time, the brush should be full when brushing. The coating film can be slightly thicker. When printing, it should be brushed several times in the horizontal and vertical directions to make it bright and even. If there is a falling phenomenon, use a brush when it is not dry. Immediately follow the original brush direction. After the second time the paint has dried out, it is polished and cleaned according to the first-pass paint treatment method, and the third time varnish is applied.
G: The surface polishing wax is a further modification of the finish, and is also an important difference between high-grade paint engineering and general paint engineering. Polishing is first done with water sandpaper and soapy water. Start with 320 water sandpaper, and worst use 600 water sandpaper. Grinding is to be evenly applied and to ensure that the entire film is ground. Then use a wax (polishing paste) on a soft cloth and rub it repeatedly on the surface of the paint film. The sanding liquid on the soft cloth should not be too much, and the action should be fast when rubbing. When the surface is very smooth and flat, wax it, use cotton vinegar and wipe a thin layer on the surface of the paint film.
H: Environmental requirements for clear oil painting: When the surface of the wood is painted with varnish, the environmental requirements are high. When the environment cannot meet the required standards, the quality of the project will be affected. The painting site requires cleaning and no dust. It should be thoroughly cleaned before painting. The air circulation should be strengthened when painting. The ground is often splashed with water during operation, and should not be crossed with the dust-producing work. Therefore, the varnish should be carried out in the final stage of the home renovation project. The brushing should be carried out under slightly dry climatic conditions. The temperature must be applied above 5 degrees Celsius to ensure the normal drying of the paint film, shorten the construction period and improve the quality of the paint film.
2. Advanced varnish paint
(1) Construction procedures
Cleaning, nailing, degreasing, etc. → sanding sanding → running powder → sanding sanding → first full of putty → polishing → second full of putty → polishing → brushing oil → brushing the first varnish → color matching →Fused putty→Brushing→Brushing the second time varnish→Brushing→ Brushing the third varnish→Water sandpaper polishing→ Brushing the fourth varnish→Blanching→Painting construction→Fishing back sanding→Glossing wax rubbing bright
(2) Construction process
The construction process is basically the same as that of clear oil, but after the fourth painting and polishing, all the non-great gauze should be used to pack the cotton wool, stick the diluted varnish, and rub it on the paint surface for 3 to 4 times until the paint film is full. If the thinner is rubbed more than 2 times, it must be rubbed from the side.
ã€two】
Wood mixing project
Alkyd enamel
(1) Construction procedures
Clean the dust on the surface of the base layer, repair the base layer → level with a matte paper, paint the paint at the knots → make a putty → apply dry oil → first put the putty → polish → apply the primer → make up the putty → Polishing → Wiping → Brushing the second coating → Polishing → Wiping → Painting the third coating → Polishing → Polishing and waxing.
(2) Construction process
A: When the base layer is treated, in addition to cleaning the debris of the base layer, local putty fitting should be performed to repair the flatness of the base layer.
B: Apply the lacquer (shellac or ash) to the throttling area with large chromatic aberration and lignin before applying the surface layer. In order to improve the bonding ability between the base layer and the surface layer, dry oil or clear oil should be applied to the base layer. All parts of the dry oil layer should be evenly brushed and not leaked. It is commonly known as brush base oil, which has a good quality to ensure the quality of the paint. The key to use. After the base oil has dried out, the first time the putty is scraped. The first time the putty is polished with hand-made sandpaper, and then the high-strength putty is added.
C: When painting the top coat, it should be sanded with fine sandpaper. If it is found to be defective, it can be repaired with putty and then sanded with fine sandpaper. Before the last application of the paint, the paint film of the previous time should be ground with water sandpaper to make the surface smooth and smooth.
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