Construction technology of paint

1. Base treatment: Firstly, the base is covered with putty, but the cracked walls should be glued with Dacron cloth, then the putty should be scraped, polished with sandpaper, the surface should be flat and smooth, and the lines and corners should be straight. (wall base)

2. For the base layer of the paper-faced gypsum board, the seam of the board and the edge of the nail hole should be treated according to the requirements, and the putty should be fully scraped, and the sandpaper should be polished and smoothed.

3. The surface of the wooden base should be smooth, clean, consistent in color, free of cracks and incomplete phenomena.

4. When rolling paint on the top of the wall, brushes and wool rollers are mostly used for construction. The brushes should be used for construction with good quality wool brushes. The wool rollers are very convenient when used in large areas, but they are used in upper and lower mouths, shaded areas, etc. The corners should be constructed with a wool brush.

5. Brushing varnish on the veneer: First, fill and smooth the nail holes with colored putty. The varnish is painted every time, and the color is repaired and polished for the part until the color tone is unified. Grinding and polishing with high-density sandpaper.

6. Brush the blending paint (polyurethane): first brush the oil once, and after the paint film is dry, use oil putty to scrape and smooth the nail holes, cracks, and incomplete parts. After drying, polish it smoothly, and then brush the blending paint. Use sandpaper to polish, so as to ensure that the surface of the paint film is smooth and smooth at this time.

7. For the unique climate and construction in Xinjiang, the wall has pan-alkaline phenomenon. It should be cleaned with 3% oxalic acid first, and then rinsed with clean water or brushed on the base layer, and the wall surface is closed. Paint, putty can be scraped after drying, polished and smooth, and then painted with surface paint.

8. After scraping the putty on the wall, it is better to use special tools when grinding. Do not grind by hand, otherwise the grinding will be uneven. Use even force when grinding to avoid revealing the bottom.