The construction method of wood coating, what is wood coating

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1. Dust removal should be carried out before the construction of wood coatings. The surface of the wood is sanded and smooth.

2. Different materials should adopt different construction methods. Hardwood is directly brushed with paint; If it is ordinary wood, it is necessary to use transparent putty as the substrate treatment, and after drying, it should be sanded evenly and thoroughly sanded off the excess transparent putty attached to the surface of the wood.

3. When painting the paint, the environment and the painting tools must be clean, and the operator should wear clean work clothes and clean work hats.

4. The coating should be thin but not thick, and it can be carried out in multiple layers with thin layers;

5. Master the temperature. Construction should be avoided when the temperature drops below 5; Avoid operating in direct sunlight or high temperatures, as the paint dries quickly and will produce pinholes or bubbles, so high-temperature construction should also be avoided as much as possible.

6. The humidity is suitable. When the ambient humidity is greater than 85%, it is not suitable for construction, otherwise it is easy to produce disadvantages such as whitening of paint film.

In the decoration, the public will come into contact with a lot of decoration materials, in addition to various tiles, natural stone slabs, and coatings. So what are wood coatings? Next, pchouse will answer for you.

As the name suggests, wood coatings are coatings used on wood products. The coatings used in wood products are collectively referred to as wood coatings, which include furniture, doors and windows, wainscoting, flooring, daily necessities, wooden musical instruments, sporting goods, stationery, children's toys, etc.

Timber products include solid wood and man-made panels (plywood, MDF and particleboard). Coatings used for wood limbs and products are collectively referred to as wood coatings, including coatings used in furniture, doors and windows, flooring, wainscoting, wood for daily life, wooden musical instruments, sporting goods, stationery, toys, etc. Mainly furniture coatings.

Wood coatings are divided into two categories according to the wood manufacturing process, board pre-coating and wood finished product coating coating. According to the type of coating, it is divided into solvent-based coatings, water-based coatings, and solvent-free coatings.

The wood paint construction process steps are much more difficult than we expected, because a little improper, it may affect the overall effect, so in the wood paint construction process must be careful, the following will introduce the wood paint construction process steps in detail.

Step 1: For any paint, before the construction of the construction objects should be cleaned some treatment, such as degreasing, storage, etc., for wood paint also need to be the surface of the construction objects polished and smoothed, which is also the most basic step in the paint construction process, of course, it is also the most important step, it directly affects the quality of the construction.

Step 2: Then we should apply a layer of primer on the surface of the construction object, this primer must be configured in accordance with the description of the product, in proportion and viscosity must meet the requirements of the operation instructions, the primer is configured after 20 minutes before starting construction, when the primer is painted, only a thin layer is needed, and sandpaper needs to be sanded again after drying.

Step 3: After the first primer is painted, some painters will scrape a thin layer of putty powder on its surface, or directly on the bottom primer with the same method of soil two layers of primer, no matter which operation, until the paint is dry, the surface must be sanded flat with different degrees of sandpaper to make it delicate and smooth.

Finally: after all the above steps are done, the topcoat is painted, the appropriate amount of curing agent should be added to the paint before the topcoat is painted, and the indirect stirring should be carried out for a certain amount of time according to the requirements, and then decide whether the paint is diluted according to the situation, and then paint when it is determined that the paint can be constructed.

If you follow this step to construct, do you think that the wood paint construction process is also very simple? Here I would like to remind everyone that we must take our time step by step in accordance with the above requirements, so as not to bring trouble to the construction.

Primer is also the use of topcoat. It should be noted that the varnish surface must be painted before the wall paint is carried out. The next thing to do is to clean the surface of the wood from dust and dirt.

Then use sandpaper to polish the surface of the board or wood molding, and brush the first coat of paint. After the paint is dry, use the blended toner and cooked rubber powder to make putty to cover up the nail holes and tree scars, so that they are the same as the original color.

Be sure to polish the rough part of the toner with fine sandpaper after the paint has dried, this time is very critical, and you must pay attention to the effect of sanding. At this point, paint again a second time, then wait until it is dry before sanding it with fine sandpaper, and then brush the next paint again.

After this is done, first wipe the surface of the wood with a damp cloth, and then wet the water with sandpaper and polish the surface, commonly known as water mill. When the water milling process is also completed, you can apply the final coat of paint. Counting the last coat of paint, it is necessary to brush the top coat about 4 to 8 times in total to have a better effect.

The more times the surface coat is painted, the better, but generally not more than 10 times.

In addition, it should be noted that when the construction is in wet weather, the paint film will be whitish, and the appropriate addition of a dilution dose of 10 15 nitro magnetized white water can be eliminated.

Water-based wood paint includes wood decoration paint, furniture paint and floor paint three major products, water-based wood paint, only semi-finished products, must go through a construction process, until the substrate is formed and the decorative effect is produced, can become a finished product. Its ideal decorative effect not only depends on the excellent performance of the water-based wood paint itself, but also on the reasonable product supporting construction, excellent construction technology, and standardized operation under appropriate environmental conditions. Good substrate treatment, strict construction and control are the guarantee to achieve high-quality projects.

Construction process: substrate treatment - scraping putty (substrate is flat and optional) - primer - topcoat.

Precautions: 1. Substrate treatment: The moisture content of wood materials is higher than 12%, and it cannot be constructed when the hand touches the damp feeling. The wood substrate must be clean and flat, and impurities such as oil and glue can not be retained on it.

2. Substrate treatment before woodworking construction: use primer or clear primer for sealing, (remove surface dust and stains, especially glue before the primer is closed.) Then the construction is carried out) treatment, and then the carpenter enters the site for construction.

3. Scraping putty: On the substrate, if the surface is rough, it is necessary to scrape and apply 1-3 times of transparent putty, with an interval of 2-3 hours, and the scraping is uniform and flat between the layers without grinding and drying. Scraping putty can also be arranged before the carpentry construction or after the carpentry is completed.

The putty does not need to be diluted, and it should generally be scraped and applied after a primer.

4. Paint the primer: apply the primer 2-3 times at an interval of 4-5 hours, after each time it is dry (depending on the humidity and climate conditions), polish it with 800 sandpaper, and dilute the primer with 10-20% water.

5. Paint the topcoat: Brush the topcoat 2-3 times, with an interval of 4-5 hours, and use more than 800 sandpaper to polish it after each time it is dry.

Before the wood is painted with water-based paint, when the oil-based primer has been painted, the paint base needs to be sanded, generally sanded with 360 sandpaper, to remove the dust, and the water-based primer can be painted, otherwise the adhesion of the paint film will be affected.

When the construction is painted with primer, for a part of the rougher substrate, the substrate should be sanded with 360-400 sandpaper first, and the primer can be painted only after removing the grinding dust, otherwise it will affect the future construction effect.

Wood paint painting process:

1. Plate treatment.

Before painting, the wood should be cleaned and any dust on the surface of the wood should be wiped clean. A special dust cloth can be used for cleaning, and large areas such as floors can be vacuumed repeatedly. At the same time, use sandpaper to polish the surface of the board or wood lines, pay attention to protect the veneer, and do not sand through.

The purpose of board treatment is to effectively remove stains, wood wool and wood thorns on the board, so that the surface of the board is clean and smooth, so that the subsequent painting has a good effect of saving labor and materials.

2. The plate is closed.

The prepared special plate sealant is evenly applied to the plate, which can effectively seal the plate and prevent the plate from being polluted.

The sealing of the plate can prevent excessive moisture absorption, moisture dispersion and deformation of the plate, enhance the adhesion between the paint film and the plate, save the amount of paint, and enhance the hardness of the paint film.

3. Scrape putty.

Select the matching wood putty, and after the mixing, scrape and apply the putty to the wooden eye. After the putty is dry, sandpaper is used to polish and thoroughly clean the putty on the wooden utensils.

Filling the wood holes with putty can reduce the amount of wood paint and improve the flatness of the paint film. Different painting effects have different requirements for the scraping of putty. For example, for an open effect, the putty color should be modulated and the color of the plate should be consistent before scraping.

4. Primer construction.

Adjust the wood primer according to the required proportion, which can be brushed or sprayed. The function of primer construction is to fill the wooden holes and increase the thickness of the paint film.

During construction, pay attention to the primer after drying, it must be thoroughly sanded with sandpaper, and then apply the primer again. It is required to be evenly brushed, no sagging, and the wooden eye is filled flat.

5. Sanding treatment.

Sanding the board with sandpaper is actually a step throughout the wood paint construction process. The plate should be sanded during treatment, the scraping putty should be sanded, the primer construction should be sanded, and the topcoat should be sanded before and after construction. The sanding step is very crucial.

The sanding treatment makes the plate smoother, smoother, and easier to paint. After painting, sanding makes the surface of the paint film smooth and smooth. However, pay attention to avoid horizontal sand when sanding, and do not use too coarse sandpaper.

6. Topcoat construction.

Before the topcoat is applied, the surface of the wood must be cleaned again to remove dust particles, so that the surface of the paint film can have a better coating effect. Every time the topcoat is painted, it is not advisable to brush too thick at one time, and it is best to take the method of painting multiple times, and then do the construction of the next layer after the paint film is dry.

The topcoat construction directly affects the final effect of the paint film, and the topcoat construction requires that it must be evenly painted, no sagging, good gloss, no obvious brush marks, and a smooth and delicate feel.