Construction technology of clear water paint for w

2022-07-22
  • Detail

1、 Material requirements

1 Paint: varnish, clear fat glue varnish, mixed paint, paint chips, etc

2. Filler: gypsum, floor yellow, laterite, black smoke, white powder, etc

3. Diluent: Alkyd thinner, pine perfume, alcohol, etc

4. Driers: “ Liquid cobalt drying agent, etc

II. Main machines and tools

1 The main machines and tools include: oil brush, knife, horn board, oil painting pen, scoop, brush, sandpaper, abrasive cloth, wiping cloth, putty board, steel scraper, rubber scraper, small oil bucket, half bucket, bucket, oil spoon, cotton wire, hemp wire, bamboo stick, small color dish, high stool, scaffold wrench, safety belt, hand hammer and small broom, etc

III. operating conditions

1 The construction temperature should be balanced without sudden change, and the ventilation should be good. The wet operation has been completed and has a certain intensity, and the environment is relatively dry. Generally, the ambient temperature during the construction of paint works should not be lower than 10 ℃, and the relative humidity should not be greater than 60%

2. When working at a place higher than 3.6m indoors, scaffolds shall be erected in advance, and the operation shall not be hindered

3. Before large-scale construction, sample rooms should be built in advance, and large-scale construction can be carried out only after passing the inspection and identification of relevant quality departments

4. Before operation, the handover inspection shall be carefully carried out, and the remaining problems shall be properly handled

5. Generally, the moisture content of wood base should not be greater than 12%

IV. operation process

1 Process flow

base treatment → Retouching oil powder → Fully apply oil putty → Paint color → Brush the first coat of varnish (varnish, putty repair, color repair, sanding paper) → Install glass → Brush the second coat of varnish → Brush the third coat of varnish

2 Wood products clear color paint operation process

1) base course treatment: first, remove the dust, oil dust, oil dirt, spots, glue marks, etc. on the base course surface of wood products with a scraper or broken glass. Be careful not to scratch burrs or scratch the plastered wall, and then use 1# sandpaper to polish along the wood grain, grinding the line corners first, and then the four port planes until smooth

when there is a small live warped skin on the base of wood products, it can be torn off with a knife. The place with heavy skin should be tested and nailed firmly with small nails. If the heavy skin is large or has burn marks, it should be repaired by carpenters

2) touch up oil powder: mix and stir with big white powder 24, pine perfume 16, cooked tung oil 2 (weight ratio) to form colored oil powder (the color is the same as the board color) and put it in small oil barrels. Apply cotton yarn dipped in oil powder to the wood surface repeatedly, rub it into the brown eyes of the wood, and then wipe it with hessian cloth, and remove the remaining powder from the line corners with bamboo chips. Note that the walls and hardware shall not be contaminated with oil powder. After the oil powder is dry, polish it gently along the wood grain with 1# sandpaper, first grind the line angle and cutting, and then grind the plane of the four holes until it is smooth. Pay attention to protect the edges and corners, and do not grind off the oil in the brown eye. After polishing, wipe off the powder and dust with a damp cloth

3) fully apply oil putty: the weight mix ratio of putty is gypsum powder 20, cooked tung oil 7, an appropriate amount of water (weight ratio), and add paint to make it gypsum colored putty (the color is lighter than the sample 1-2 colors). Pay attention to that the putty should not be too oily or too small. If it is oily, it is not easy to immerse in wood when brushing, if it is oily, it is easy to drill into wood, so the painted oil color is not easy to be uniform, and the color cannot be consistent. Scrape the putty into the nail holes, cracks and brown eyes with a knife or horn board. When scraping, it is necessary to scrape horizontally and vertically. If the joint or knot scar is large, the putty shall be squeezed into the joint with a knife and an ox horn board, and then scraped flat. Putty must be polished, and no wild putty is left. After the putty is completely dry, polish it gently along the wood grain with 1 # sandpaper. First grind the line angle and cutting, and then grind the plane of the four openings. Pay attention to protect the edges and corners, and polish it until it is smooth. After polishing, wipe the ground powder with a damp cloth

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