>>>Paint brush attention issue
First, material requirements
1. Coatings: Varnish, clear gel varnish, blend paint, paint film, etc.
2. Filler: plaster, floor yellow, red earth son, black smoke, white powder and so on.
3. Thinner: Alkyd thinner, pine perfume, alcohol, etc.
4. Drier: "liquid cobalt dry agent" and so on.
Second, the main equipment
1. The main equipment includes: oil brush, knife, horn board, oil brush, tweezers, brush, sandpaper, emery cloth, wipe, putty board, steel scraper, squeegee, small oil drum, half vat, bucket, Spoon, cotton, linen, bamboo sticks, small dishes, high stools, flippers, safety belts, hand hammers, and small brooms.
Third, the operating conditions
1. The construction temperature should be balanced, not abruptly changed, and well ventilated. The wet operation is completed and has a certain strength, and the environment is relatively dry. The ambient temperature during the general paint project construction should not be lower than 10°C, and the relative humidity should not be greater than 60%.
2. When working indoors at a height of more than 3.6m, scaffolding should be erected in advance, and the operation is not to interfere.
3. Before the large-area construction, the model room should be done in advance, and the large-area construction can be carried out only after passing inspection and appraisal by the relevant quality department.
4. Handover inspections should be performed carefully before operation, and the remaining issues should be properly handled.
5. The moisture content of wood base layer should generally not exceed 12%.
Fourth, the operating process
1. Process flow
Primary processing → Polishing oil powder → Full scraping putty → Brush oil → Brush First varnish (brush varnish, repair putty, color correction, frosted paper) → Install glass → Brush second time varnish → Brush third time varnish
2. Wood products clear paint operation process
1) Grassroots processing: First, the dust, oil dust, oil stains, spots, and glue traces on the base layer of wood products shall be scraped off with a scraper or broken glass. Be careful not to scratch the burrs or scratch the plastering walls. Then use a sandpaper to grind the wood grain, grind the corners, and grind the four flat surfaces until they are smooth.
When there is a small piece of living leather on the base of the wood product, it can be removed with a knife. Heavy leather should be tested with a small nail nail firm, such as a large skin or baking paste, should be repaired by woodworking.
2) Polishing oil powder: Use a mixture of white powder 24, pine perfume 16, ripe tung oil 2 (weight ratio), etc. to mix and stir the colored oil (with the same plate color) in a small oil drum. Repeatedly applied to the surface of the wood with cotton silk oil powder, rubbed into the brown eyes of the wood, and then rubbed with a burlap, the bamboo angle was applied to remove excess powder. Pay attention to the wall surface and the hardware must not be contaminated with oil powder. After the oil powder is dry, use a sandpaper to gently grind along the wood grain, first grind the corner, cut the mouth, and then grind the four planes until they are smooth. Pay attention to the protection of edges and corners, do not rub off the brown eye oil. After polishing, use a damp cloth to wipe off the powder and dust.
3) Fill the scraping putty: Putty weight ratio is gypsum powder 20, cooked tung oil 7, water amount (weight ratio), and add pigment into a plaster putty (color is lighter than the model 1-2 color), pay attention to putty Oiliness should not be too large or too small, such as oily, difficult to immerse into the wood when brushing, such as oily, it is easy to drill into the wood, so that the oil brush is not easy to uniform color can not be consistent. Use a knife or horn board to scrape putty into nail holes, cracks, and brown eyes. When scratching, it should be horizontally scraped and erected. In case of large joints or frugality, apply knife and horn board to squeeze the putty into the seam and then scrape. Putty must be scraped, leaving no wild putty. After the putty is dry, use a sandpaper to gently grind along the wood grain, first grind the corner, cut the mouth, and then grind the four planes. Care should be taken to protect the edges and edges until they are smooth. After polishing, wipe the ground powder with a damp cloth.
4) Brush oil color. First lead oil (or blend paint), gasoline, Varnish, clear oil, etc. mixed together Luo (color the same board color), and then pour in a small drum, often stirring when used, so as not to cause precipitation caused by inconsistent color.
Brush oil, should be from outside to inside, from left to right, from top to bottom, along the wood brushing, brushing wood products can not contaminate the wall surface, brush to the joint to be light, to the same color; due to oil The color is dry faster, so the action should be agile when brushing the oil color, and it is required to be smooth and straight, horizontal and vertical, and the brush should be light to avoid brushing.
After oil brushing, the color of the wood is required to be the same, but the wood grain is not covered. Therefore, each brush surface must be well brushed once, and no joints are left. The two brush surfaces should not be affected by oil, and should be timely after oiling. Wipe off and reach the same color.
5) Brush the varnish first time:
a. Brush varnish: The brush method is the same as the brush oil color, but the varnish used for the first time should be lightly diluted with some thinner material (gasoline) to facilitate quick drying. Due to the greater viscosity of the varnish, it is best to use an old brush that has been used for brushing. Care should be taken to ensure that the brush does not flow, does not fall, and is evenly brushed. After the varnish is completely dried, it is thoroughly polished with 1 or old sandpaper, and the light on the varnish surface is polished off, and the dust is wiped clean with a damp cloth.
b. repair putty: general requirements do not wipe putty after brushing oil, under special circumstances, you can use a slightly oily colored plaster putty, repair incomplete defects, the operation must use horn board scraping, do not damage the paint film, PuTTY must be scraped clean and smooth with no putty.
c. Fix color: dark spots on the surface of the wood, knots, putty and material color inconsistencies, the use of paint films, alcohol plus toning (color the same board color) or from light to deep paint than tone paint (lead oil ) and diluents for deployment, color correction; dark material should be repaired shallow, deeper and deeper, the color of the wood into a single color, and showing wood grain.
d. Grinding paper: Gently polish with a fine sandpaper, then wipe the powder with a damp cloth.
6) Install the glass: Please see the fine sandpaper and gently rub it back and forth, then wipe the powder with a damp cloth.
7) Brush the varnish a second time: The original barrel varnish should be used without thinner (drier can be slightly added in winter). The brushing action should be agile, more brushing and more, the varnish brushing should be full and consistent, no flow, no drop, If it is not bright and even, check it carefully after brushing and correct it in case of problems. When cleaning the varnish over time, the operating environment should be tidy and it is advisable to temporarily stop the passage of time. Finally, the wooden doors and windows should be hooked with hooks or fastened with wooden wedges.
8) Brush the varnish a third time: After the varnish is dry on the second time, it must first be polished, then the water cloth, and then the third time varnish.
3. Winter construction: The winter construction indoor paint project should be conducted under heating conditions, and the room temperature should be kept in a balanced manner. Generally, it should not be lower than 10°C and must not suddenly change. At the same time, special personnel shall be responsible for opening and closing doors and windows to facilitate ventilation to remove moisture.
V. Finished product protection
1. Every time before painting, clean the floor and window sills to prevent dust from flying and affect the quality of the paint.
2. After each pass of paint, the door and window fan should be hooked with a hook to prevent the door and window fan and frame paint from sticking, destroy the paint film, and cause repair and damage.
3. After painting, brush the oil on the floor or window sill and contaminated on the wall.
4. After the paint is completed, special personnel should be assigned to care.
Six, should pay attention to the quality of the problem
1. Leaking brush: Leaking brush usually occurs in the top and bottom of the door and window, the hinged hinge face, the door and window frame, the upper and lower ends of the pressure strip, and the inside of the wardrobe frame. The main reason is that when the inner door is installed, the oilworker does not cooperate with the woodworker, so the door leaf is often installed under the no-head paint and the management is not in place, and there is often a phenomenon of less oil brushing again. Other leaky brush problems are mainly caused by the operator's failure.
2. lack of putty, lack of sandpaper: generally occur in the hinge slot, upper and lower head, head and nail holes, cracks, knots, and edge defects and so on. The main reason is that the operation did not operate in accordance with the process specification.
3. Falling and wrapping: There are two main reasons: First, the paint is too thin, the paint film is too thick or the ambient temperature is high, and the dryness of the paint is slow. Second, due to improper operation procedures and methods, especially the separation of doors and windows, once the oil is large and the operation is not paying attention, it is often easy to cause falling and entrapment.
4. The brush pattern is obvious: it is mainly due to the small oil brush or the brush that is not soaked by the hard brush hair. Appropriately apply a suitable brush and apply the brush with a thin foam.
5. Roughness: The main reason is that the grass-roots floor is not clean. When there are impurities or dust in the paint, the construction will cause roughness on the paint surface. Should pay attention to wipe with a damp cloth, paint should be too Luo, it is strictly prohibited when brushing oil cleaning or high wind when brushing oil.
6. Wrinkles: Mainly due to poor paint quality, uneven blending, fast solvent evaporation, or excessive driers.
7. Hardware pollution: To prevent hardware pollution, besides the operation, it is advisable to install hardware such as door locks, handles, and latches (but you can drill holes in the positions and holes beforehand) to ensure that the hardware is clean and beautiful.
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