Buy suit wood door paint process can not be ignored
In the selection of wooden doors, paint is one of the factors that must be considered. It directly affects the texture, feel, moisture, environmental protection, durability, resistance to yellowing and other issues.
European sent suit door Oulong paint ( western chemical industry )
The paint is used as a post-process for the processing of wooden door factories. Its advantages and disadvantages directly affect the final use effect. At the same time, the paint cost is also one of the largest parts of the wooden door.
The types of paint are roughly divided into phenolic paint, alkyd paint, polyurethane paint, nitro paint, polyester paint, and PU paint. Among them, phenolic paints and alkyd paints are basically eliminated during the decoration due to poor texture and adhesion of paint films, and a large number of urethane paints, polyester paints, and PU paints used on high-grade furniture are used in large quantities.
Nitro-lacquer is relatively simple to use and suitable for manual operation. It is used by most hand-decorated woods. However, the paint film is thin and feels bad. The effect is not ideal. Polyester paint is relatively thick, but its diluent contains helium when it is volatilized, and its hardness is slightly weaker. The most ideal is PU lacquer. PU lacquer not only has thick and thick film of polyester paint, strong adhesion and good transparency. At the same time, its good sealing performance also plays a very important role in wood moisture protection. Hardness, durability, yellowing resistance and environmental protection are also unmatched by other paints.
Due to the cost (Nitro-lacquer 8-15 yuan / kg, polyester paint 18-28 yuan / kg, PU paint 43-65 yuan / kg), processing methods and equipment, currently on the market 90% of the use of wooden doors Polyester paint, a few manufacturers use PU paint. In general, polyester paint and PU paint have to look for color, three steps and two sides and other six processes, some brands increase the curing and waxing process.
Therefore, in the selection of wooden doors, paint is one of the factors that must be considered. It directly affects the texture, feel, moisture, environmental protection, durability, resistance to yellowing and other issues.
Wood paint process standards:
(A) Wood Oil Cleaning Project
Alkyd varnish
(1) Clean the surface of the woodware → Polish the sandpaper → Putty → Polish → Paint → Repeat the above procedure
(2) Construction process
A: Primary treatment before clean oil brushing: In the important process of brushing varnish when grinding the base layer, dust, oil, and other impurities on the wood surface should be removed first, and the nail cap should be trapped within 1 mm as required. When sanding the sandpaper, rub the rubbish paper into the short wood side pad, grind it at a large angle, and polish and polish it with a damp cloth or cotton wire.
B: Use a knife or a scraper to scrape the oil into the nail holes, seams, etc., wipe it horizontally, scrape light, and collect the net. After drying, gently grind lightly with sandpaper along the wood grain. Tide cloth or cotton wiping.
C: The construction specification of the clean oil brushing: When brushing oil, it is constructed in accordance with the operation method of top-bottom, bottom-to-front, front-to-back, front-to-back, front-to-back, front-to-back and back-to-back, and horizontal brushing.
D: When the varnish is applied on the first pass, a certain amount of thinner dilute paint should be added to facilitate quick drying of the paint film.
E: Apply the brush to the wood grain during the operation. It is required to evenly paint the paint film. Do not leak the brush and do not fall. After the oil is completely dry and hardened, sand it with sandpaper. When polished, it is required to polish all the light on the film to increase the adhesion with the after-pass paint. After grinding, clean it with a damp cloth or cotton.
F: After the first time the varnish is brushed, the veneer should be sorted out and repaired. For the obvious unevenness of the varnish, the oily putty with the same color as the varnish can be used for repair. If the wood surface is frugal, dark spots and large paint When the surface is inconsistent, the oil color of the desired color should be formulated, and the colors should be covered and repaired to ensure that there is no large color difference in the finish. When brushing the varnish a second time, the brush should be full when brushing, the coating film can be slightly thicker, and the brush should be brushed several times in the horizontal and vertical direction to make it bright and uniform. If there is a flow phenomenon, brush should be used when it is not dry. Immediately follow the direction of the original brush. The second time after the paint is dry, it is polished and wiped according to the first time. The brush is painted the third time.
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