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How to brush wood paint
Finishing treatment of substrate? →? The first primer coating? →? Blow putty? →? Second primer coating? →? Topcoat painting.
Construction method of wood paint:
1. Before painting, the furniture should be degreased, decontaminated and polished.
2. Use the matching water-based primer, prepare it according to the proportion of product description, stir it evenly, dilute it with water according to the construction viscosity, filter it with silk cloth, and let it stand for 20 minutes before construction. The first primer should be applied thinly and evenly, dried for 3~4 hours (25℃, 50% humidity), and then sanded.
3. According to the depth of wood grain, it is better to scrape the putty thinner. When scraping putty, you should scrape it into the cracks, and polish it thoroughly with sandpaper after it is dried.
4. Brush putty or the first primer 1~2 times. After the primer is dried, it is polished with sandpaper to make the substrate fine and smooth.
5. The topcoat shall be prepared in proportion to the product description. The main paint and curing agent are mixed, stirred intermittently 10 minute, diluted to construction viscosity with water as appropriate, filtered with silk cloth, and allowed to stand for 20 minutes before construction. General topcoat brush 1~2 times. If higher fullness is required, you can increase the number of topcoats. The recoating time is within 2~ 16 hours (25℃, 50% humidity), and there is no need to polish between topcoats. If the recoating time exceeds 16 hours, the topcoat shall be applied after polishing. Before painting the last topcoat, after the paint film is fully dried (about 12 hours), lightly dry grind or wet grind the uneven parts with sandpaper with mesh number of 1000, and wipe them clean, and then paint or spray the last topcoat? .
Matters needing attention in wood paint construction:
1, wood paint should be painted after the completion of ground construction, and it should be ventilated and dust-free during construction, so as not to affect the overall effect. Wood paint and latex paint cannot be constructed at the same time.
2. Wood should be dry, the moisture content should not exceed 15%, and the humidity and temperature of the construction environment should not be too high.
3. Coating products are mostly composed of three components (main paint, diluent and curing agent). Before mixing, mix them evenly and prepare the coating in strict proportion.
4. Choose matching diluent and curing agent to avoid undercut and wrinkling.
5. After blending, filter and let stand 10~ 15 minutes before brushing.
6. After the prepared coating is left for a period of time, a proper amount of diluent can be added to avoid brush marks caused by viscosity increase.
7、? The prepared paint should be used up within 4 hours, and can't be put back into the original paint bucket before it is used up? .
8. A construction area should not be more than 4-5 boards wide to avoid brush marks? .
9, a layer of construction coating can't be too thick, must wait until the coating work is completed before the next layer of construction.
10, the primer should not be thick, just a thin layer. Top coat should not be applied too thick at one time, otherwise it will affect the drying speed and hardness.
1 1. Wood paint must be thoroughly polished before construction until the whole paint film feels smooth and flat, so as to avoid delamination due to poor adhesion between layers.
12, grinding must be done after hard work, otherwise it will be foggy or white? .
13, when the ambient temperature is lower than 7℃ or the humidity is higher than 85%, construction cannot be carried out, otherwise it will easily lead to defects such as white paint film.
Only by strictly controlling the construction technology of wood paint and doing the relevant construction precautions can the service life of wood paint be better guaranteed. There are other painting projects in the decoration process, and we also need to fully control them, but we can also ask professional decoration supervisors to help us control them and apply for Tuba rabbit decoration insurance. Professional decoration supervisors will come to check the decoration construction process for free! & lt& lt& lt Click here to apply for free decoration insurance and free professional quality inspection >>& gt.
Related reading:
Construction knowledge of waterborne wood paint
Top ten brands of wood lacquer
What are the hazards of paint? How to prevent it?
Construction technology of exterior wall coating
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