First, how to make water-based paint
1, internal acceptance
(1) After the veneer is delivered to the construction site, the woodworking team leader shall check the quality of the veneer together with the project manager. If there are quality problems such as undercoating, hollowing out and large color difference. You should immediately notify the material personnel to return the goods. If there is no quality problem, notify the painter to brush the back cover of Lubo (or Ke Mei) brand. Before painting the back cover, polish it with 360# sandpaper to remove stains. When painting the decorative board, brush one piece first, and then brush a lot after the owner has read and approved it. It is forbidden to use other types of work instead.
Note: If the weather temperature is too high, you can dilute the back cover with alcohol and paint the decorative board. Because the temperature is too high and drying is too fast, brush marks may appear.
(2) Before varnish construction, internal acceptance shall be carried out for the carpentry facing project to check whether the convergent line of the facing plate is sunken; Check whether the pattern nails and shooting nails on the decorative board are exposed in a large area, whether they are degummed with the base, whether the "corner splicing" production is in place and consistent, and whether there is any damage; Especially for large-area decorative boards, check for damage and scratches. If there is any above phenomenon, the carpenter must rework.
③ Hardware fittings: hinges, hinges, magnetic contacts, handles and door handles. When the carpenters leave, they must all be unloaded, bagged with white latex and put into empty barrels for protection, and handed over to the painter for safekeeping when the painter enters the site. Hardware accessories that cannot be unloaded due to process reasons, etc. Such as three-stage silent drawer track, lock core, lock box, sliding door track, etc. When the painter enters the site, he must do a good job of protection.
2. Material polishing
Use 360# sandpaper to polish the wood grain. It is forbidden to polish the veneer with a sand rack. The key points are pencil marks, rust, stains, dust and white latex. If there is any place on the decorative board that cannot be polished with white latex, gently clean it with a blade (or polish it with thinner). When polishing, the trademark on the decorative board must be removed. When grinding, special attention should be paid not to scratch and wear through the surface of the decorative board, and try not to scratch the "corners". When grinding, if you encounter bare nails and grain nails, you need to nail them carefully into the plate with steel nails, and the nail holes cannot be enlarged; After polishing, clean the dust with a brown brush.
3. Brush the water-based back cover (1-2 times)
Try not to add water to the water-based back cover. If it is sticky and difficult to brush, please dilute it with alcohol. For water-based back cover, the panels need to be attached, and the interlayer should be covered with wax paper or film.
4, complementary color gray
(1) Repairing colored ash is to repair nail holes, which is a key link in decorative varnish. Use 80 1 glue (white latex or other water-based glue)+gypsum powder (fully cooked)+shuangfei powder+colored powder (the color depends on the color of the decorative board) to make the background gray. (Note: the wood grain of the decorative board has a background color, that is, the background color, and then the surface color is above the background color, that is, its grain), and then the surface color is adjusted to gray according to the surface color of the decorative board. Sometimes the particles have many colors or different shades of color. When the modulation surface color is gray, multiple colors must be assigned according to the particle color. When making water-based paint, the color of putty is slightly darker than that of plate.
(2) Before large-scale ash replenishment and large-scale repair, small-scale color test and color matching are needed. No nail holes can be seen at the standard1.5m. When filling with ash, it should be slightly higher than the board surface, and the smaller the filling area, the better.
(3) After drying, use 600 # sandpaper to polish along the grain. When polishing, there should be no residue on the surface. After polishing, clean with a brown brush.
5. The first brush bottom.
(1), mix the primer according to the proportion of the product manual, and mix the paint thoroughly and evenly. Stir gently and evenly clockwise, not at high speed or in the opposite direction, so as not to damage the reaction chain of paint solution. Stir evenly and let stand for 20 minutes before use to avoid defects such as whitening, foaming, pinhole and uneven gloss of the coating. The undistributed waterborne wood paint should be sealed immediately and placed in the place where materials are stacked.
(2) When brushing with a special brush for water-based paint, it should be from top to bottom, from inside to outside, and from difficult to easy. When painting, generally use the method of direct grip, fingers should not exceed the iron piece, fists should be clenched with both hands, wrists should be flexible, and hand and body movements should be coordinated when necessary. When dipping paint, don't dip all the bristles, just dip them into 2/3 of the special brush. After dipping, pat the sides of the paint brush a few times in the paint bucket, so that the paint can be photographed on the head of the bristles to avoid falling off when brushing. At the beginning, make the paint brush as vertical as possible, and brush it with a bristled belly. At the end of the painting, gently brush with the front end of the bristles.
6, batch scraping transparent putty 1-2 times
This process is an option, depending on the wood grain depth of the veneer. Its main function is to fill wood grain. If the wood grain is deep, it is difficult to fill it with primer, so it is necessary to scrape transparent putty in batches, or scrape self-adjusting putty (red, yellow and black powder +600 mesh talcum powder+white latex). The putty layer does not need polishing. If there are particles, residues or pollutants, sand them off with sandpaper. After grinding, the wood grain is full and the finish is smooth and flat.
7. Brush the bottom for 2-3 times.
The construction method refers to the first bottom cleaning procedure. After the coating is dried (6 hours), the missing, empty and nail holes are repaired with colored ash at one time. If the color of nail eye is not up to standard, it should be supplemented with color essence or dug out. After drying, use 800# sandpaper to polish along the wood grain, and then use brown brush to sweep the dust after polishing. The number of times of bottom cleaning construction depends on the depth of capillary holes on the board. If the panel with deep pores needs to be primed, because the main function of the primer is to provide fullness and support the topcoat.
8. Amendment
A, polishing is to make the next coating better match with the previous coating, and increase the adhesion, smoothness and feel of the paint film. Therefore, the inspection after polishing must be bright, smooth and not blocked. Waterborne primer is easy to dry and has good polishing performance.
B, you can also water mill, but try not to choose. Water mill is also called fading or grinding. As the name implies, water milling is to dilute the gloss of the paint film, so that the next layer of paint film can better match the previous layer of paint film, and increase the adhesion, smoothness and feel of the paint film. Therefore, the inspection after water milling must be smooth and smooth without bright spots. During water milling, the base paint film should be permeable (at least 24 hours) and rubbed with water sandpaper above 1000#. After water milling, the ground powder must be cleaned before spraying the next layer of paint film to prevent bubbles, pinholes and whitening caused by water vapor and wet steam.
Paint construction process will release a lot of harmful gases such as formaldehyde, so it is best to wear a mask. If it is best to put some nano-nano-silicon nano-silicon indoors, the deodorizing effect of in addition to formaldehyde is five times stronger than that of activated carbon, which is on a treasure.
In order to maximize the value of water-based paint in the decoration process, it is not enough to only pay attention to the choice of product brands in the early stage. At the key time, we should also know about the construction skills and precautions in the later stage of water-based paint. Through the basic plate analysis of the above related steps, we can know that there are many key points to be understood in the treatment of water-based paint in the later stage of decoration, and a more suitable scheme should be drawn up in combination with the actual situation. To avoid additional losses and losses, interested friends may wish to refer to the above, combined with professional advice, I believe we can get satisfactory results.
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